aoc2018-0.1.0.0: Advent of Code 2018 solutions and auto-runner

Safe HaskellNone
LanguageHaskell2010

AOC2018.Prelude

Synopsis

Documentation

(++) :: [a] -> [a] -> [a] infixr 5 #

Append two lists, i.e.,

[x1, ..., xm] ++ [y1, ..., yn] == [x1, ..., xm, y1, ..., yn]
[x1, ..., xm] ++ [y1, ...] == [x1, ..., xm, y1, ...]

If the first list is not finite, the result is the first list.

filter :: (a -> Bool) -> [a] -> [a] #

filter, applied to a predicate and a list, returns the list of those elements that satisfy the predicate; i.e.,

filter p xs = [ x | x <- xs, p x]

zip :: [a] -> [b] -> [(a, b)] #

zip takes two lists and returns a list of corresponding pairs.

zip [1, 2] ['a', 'b'] = [(1, 'a'), (2, 'b')]

If one input list is short, excess elements of the longer list are discarded:

zip [1] ['a', 'b'] = [(1, 'a')]
zip [1, 2] ['a'] = [(1, 'a')]

zip is right-lazy:

zip [] _|_ = []
zip _|_ [] = _|_

fst :: (a, b) -> a #

Extract the first component of a pair.

snd :: (a, b) -> b #

Extract the second component of a pair.

trace :: String -> a -> a #

The trace function outputs the trace message given as its first argument, before returning the second argument as its result.

For example, this returns the value of f x but first outputs the message.

>>> let x = 123; f = show
>>> trace ("calling f with x = " ++ show x) (f x)
"calling f with x = 123
123"

The trace function should only be used for debugging, or for monitoring execution. The function is not referentially transparent: its type indicates that it is a pure function but it has the side effect of outputting the trace message.

map :: (a -> b) -> [a] -> [b] #

map f xs is the list obtained by applying f to each element of xs, i.e.,

map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]
map f [x1, x2, ...] == [f x1, f x2, ...]

($) :: (a -> b) -> a -> b infixr 0 #

Application operator. This operator is redundant, since ordinary application (f x) means the same as (f $ x). However, $ has low, right-associative binding precedence, so it sometimes allows parentheses to be omitted; for example:

f $ g $ h x  =  f (g (h x))

It is also useful in higher-order situations, such as map ($ 0) xs, or zipWith ($) fs xs.

Note that ($) is levity-polymorphic in its result type, so that foo $ True where foo :: Bool -> Int# is well-typed

guard :: Alternative f => Bool -> f () #

Conditional failure of Alternative computations. Defined by

guard True  = pure ()
guard False = empty

Examples

Expand

Common uses of guard include conditionally signaling an error in an error monad and conditionally rejecting the current choice in an Alternative-based parser.

As an example of signaling an error in the error monad Maybe, consider a safe division function safeDiv x y that returns Nothing when the denominator y is zero and Just (x `div` y) otherwise. For example:

>>> safeDiv 4 0
Nothing
>>> safeDiv 4 2
Just 2

A definition of safeDiv using guards, but not guard:

safeDiv :: Int -> Int -> Maybe Int
safeDiv x y | y /= 0    = Just (x `div` y)
            | otherwise = Nothing

A definition of safeDiv using guard and Monad do-notation:

safeDiv :: Int -> Int -> Maybe Int
safeDiv x y = do
  guard (y /= 0)
  return (x `div` y)

join :: Monad m => m (m a) -> m a #

The join function is the conventional monad join operator. It is used to remove one level of monadic structure, projecting its bound argument into the outer level.

Examples

Expand

A common use of join is to run an IO computation returned from an STM transaction, since STM transactions can't perform IO directly. Recall that

atomically :: STM a -> IO a

is used to run STM transactions atomically. So, by specializing the types of atomically and join to

atomically :: STM (IO b) -> IO (IO b)
join       :: IO (IO b)  -> IO b

we can compose them as

join . atomically :: STM (IO b) -> IO b

to run an STM transaction and the IO action it returns.

class Applicative m => Monad (m :: Type -> Type) where #

The Monad class defines the basic operations over a monad, a concept from a branch of mathematics known as category theory. From the perspective of a Haskell programmer, however, it is best to think of a monad as an abstract datatype of actions. Haskell's do expressions provide a convenient syntax for writing monadic expressions.

Instances of Monad should satisfy the following laws:

Furthermore, the Monad and Applicative operations should relate as follows:

The above laws imply:

and that pure and (<*>) satisfy the applicative functor laws.

The instances of Monad for lists, Maybe and IO defined in the Prelude satisfy these laws.

Minimal complete definition

(>>=)

Methods

(>>=) :: m a -> (a -> m b) -> m b infixl 1 #

Sequentially compose two actions, passing any value produced by the first as an argument to the second.

(>>) :: m a -> m b -> m b infixl 1 #

Sequentially compose two actions, discarding any value produced by the first, like sequencing operators (such as the semicolon) in imperative languages.

return :: a -> m a #

Inject a value into the monadic type.

Instances
Monad []

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: [a] -> (a -> [b]) -> [b] #

(>>) :: [a] -> [b] -> [b] #

return :: a -> [a] #

fail :: String -> [a] #

Monad Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: Maybe a -> (a -> Maybe b) -> Maybe b #

(>>) :: Maybe a -> Maybe b -> Maybe b #

return :: a -> Maybe a #

fail :: String -> Maybe a #

Monad IO

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: IO a -> (a -> IO b) -> IO b #

(>>) :: IO a -> IO b -> IO b #

return :: a -> IO a #

fail :: String -> IO a #

Monad Par1

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(>>=) :: Par1 a -> (a -> Par1 b) -> Par1 b #

(>>) :: Par1 a -> Par1 b -> Par1 b #

return :: a -> Par1 a #

fail :: String -> Par1 a #

Monad Q 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

(>>=) :: Q a -> (a -> Q b) -> Q b #

(>>) :: Q a -> Q b -> Q b #

return :: a -> Q a #

fail :: String -> Q a #

Monad Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Last a -> (a -> Last b) -> Last b #

(>>) :: Last a -> Last b -> Last b #

return :: a -> Last a #

fail :: String -> Last a #

Monad Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

(>>=) :: Identity a -> (a -> Identity b) -> Identity b #

(>>) :: Identity a -> Identity b -> Identity b #

return :: a -> Identity a #

fail :: String -> Identity a #

Monad IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(>>=) :: IResult a -> (a -> IResult b) -> IResult b #

(>>) :: IResult a -> IResult b -> IResult b #

return :: a -> IResult a #

fail :: String -> IResult a #

Monad Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(>>=) :: Result a -> (a -> Result b) -> Result b #

(>>) :: Result a -> Result b -> Result b #

return :: a -> Result a #

fail :: String -> Result a #

Monad Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(>>=) :: Parser a -> (a -> Parser b) -> Parser b #

(>>) :: Parser a -> Parser b -> Parser b #

return :: a -> Parser a #

fail :: String -> Parser a #

Monad Complex

Since: base-4.9.0.0

Instance details

Defined in Data.Complex

Methods

(>>=) :: Complex a -> (a -> Complex b) -> Complex b #

(>>) :: Complex a -> Complex b -> Complex b #

return :: a -> Complex a #

fail :: String -> Complex a #

Monad Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Min a -> (a -> Min b) -> Min b #

(>>) :: Min a -> Min b -> Min b #

return :: a -> Min a #

fail :: String -> Min a #

Monad Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Max a -> (a -> Max b) -> Max b #

(>>) :: Max a -> Max b -> Max b #

return :: a -> Max a #

fail :: String -> Max a #

Monad First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: First a -> (a -> First b) -> First b #

(>>) :: First a -> First b -> First b #

return :: a -> First a #

fail :: String -> First a #

Monad Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Option a -> (a -> Option b) -> Option b #

(>>) :: Option a -> Option b -> Option b #

return :: a -> Option a #

fail :: String -> Option a #

Monad First

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

(>>=) :: First a -> (a -> First b) -> First b #

(>>) :: First a -> First b -> First b #

return :: a -> First a #

fail :: String -> First a #

Monad Last

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

(>>=) :: Last a -> (a -> Last b) -> Last b #

(>>) :: Last a -> Last b -> Last b #

return :: a -> Last a #

fail :: String -> Last a #

Monad Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Dual a -> (a -> Dual b) -> Dual b #

(>>) :: Dual a -> Dual b -> Dual b #

return :: a -> Dual a #

fail :: String -> Dual a #

Monad Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Sum a -> (a -> Sum b) -> Sum b #

(>>) :: Sum a -> Sum b -> Sum b #

return :: a -> Sum a #

fail :: String -> Sum a #

Monad Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Product a -> (a -> Product b) -> Product b #

(>>) :: Product a -> Product b -> Product b #

return :: a -> Product a #

fail :: String -> Product a #

Monad Down

Since: base-4.11.0.0

Instance details

Defined in Data.Ord

Methods

(>>=) :: Down a -> (a -> Down b) -> Down b #

(>>) :: Down a -> Down b -> Down b #

return :: a -> Down a #

fail :: String -> Down a #

Monad ReadP

Since: base-2.1

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

(>>=) :: ReadP a -> (a -> ReadP b) -> ReadP b #

(>>) :: ReadP a -> ReadP b -> ReadP b #

return :: a -> ReadP a #

fail :: String -> ReadP a #

Monad NonEmpty

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(>>=) :: NonEmpty a -> (a -> NonEmpty b) -> NonEmpty b #

(>>) :: NonEmpty a -> NonEmpty b -> NonEmpty b #

return :: a -> NonEmpty a #

fail :: String -> NonEmpty a #

Monad Put 
Instance details

Defined in Data.ByteString.Builder.Internal

Methods

(>>=) :: Put a -> (a -> Put b) -> Put b #

(>>) :: Put a -> Put b -> Put b #

return :: a -> Put a #

fail :: String -> Put a #

Monad Tree 
Instance details

Defined in Data.Tree

Methods

(>>=) :: Tree a -> (a -> Tree b) -> Tree b #

(>>) :: Tree a -> Tree b -> Tree b #

return :: a -> Tree a #

fail :: String -> Tree a #

Monad Seq 
Instance details

Defined in Data.Sequence.Internal

Methods

(>>=) :: Seq a -> (a -> Seq b) -> Seq b #

(>>) :: Seq a -> Seq b -> Seq b #

return :: a -> Seq a #

fail :: String -> Seq a #

Monad CryptoFailable 
Instance details

Defined in Crypto.Error.Types

Monad DList 
Instance details

Defined in Data.DList

Methods

(>>=) :: DList a -> (a -> DList b) -> DList b #

(>>) :: DList a -> DList b -> DList b #

return :: a -> DList a #

fail :: String -> DList a #

Monad P 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

(>>=) :: P a -> (a -> P b) -> P b #

(>>) :: P a -> P b -> P b #

return :: a -> P a #

fail :: String -> P a #

Monad ParseResult 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Monad Vector 
Instance details

Defined in Data.Vector

Methods

(>>=) :: Vector a -> (a -> Vector b) -> Vector b #

(>>) :: Vector a -> Vector b -> Vector b #

return :: a -> Vector a #

fail :: String -> Vector a #

Monad SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Methods

(>>=) :: SmallArray a -> (a -> SmallArray b) -> SmallArray b #

(>>) :: SmallArray a -> SmallArray b -> SmallArray b #

return :: a -> SmallArray a #

fail :: String -> SmallArray a #

Monad Array 
Instance details

Defined in Data.Primitive.Array

Methods

(>>=) :: Array a -> (a -> Array b) -> Array b #

(>>) :: Array a -> Array b -> Array b #

return :: a -> Array a #

fail :: String -> Array a #

Monad Stream 
Instance details

Defined in Codec.Compression.Zlib.Stream

Methods

(>>=) :: Stream a -> (a -> Stream b) -> Stream b #

(>>) :: Stream a -> Stream b -> Stream b #

return :: a -> Stream a #

fail :: String -> Stream a #

Monad P

Since: base-2.1

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

(>>=) :: P a -> (a -> P b) -> P b #

(>>) :: P a -> P b -> P b #

return :: a -> P a #

fail :: String -> P a #

Monad EP 
Instance details

Defined in Language.Haskell.Exts.ExactPrint

Methods

(>>=) :: EP a -> (a -> EP b) -> EP b #

(>>) :: EP a -> EP b -> EP b #

return :: a -> EP a #

fail :: String -> EP a #

Monad (Either e)

Since: base-4.4.0.0

Instance details

Defined in Data.Either

Methods

(>>=) :: Either e a -> (a -> Either e b) -> Either e b #

(>>) :: Either e a -> Either e b -> Either e b #

return :: a -> Either e a #

fail :: String -> Either e a #

Monad (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(>>=) :: U1 a -> (a -> U1 b) -> U1 b #

(>>) :: U1 a -> U1 b -> U1 b #

return :: a -> U1 a #

fail :: String -> U1 a #

Monoid a => Monad ((,) a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(>>=) :: (a, a0) -> (a0 -> (a, b)) -> (a, b) #

(>>) :: (a, a0) -> (a, b) -> (a, b) #

return :: a0 -> (a, a0) #

fail :: String -> (a, a0) #

Monad m => Monad (WrappedMonad m)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Methods

(>>=) :: WrappedMonad m a -> (a -> WrappedMonad m b) -> WrappedMonad m b #

(>>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b #

return :: a -> WrappedMonad m a #

fail :: String -> WrappedMonad m a #

Monad (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

(>>=) :: Parser i a -> (a -> Parser i b) -> Parser i b #

(>>) :: Parser i a -> Parser i b -> Parser i b #

return :: a -> Parser i a #

fail :: String -> Parser i a #

Monad (Proxy :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Proxy

Methods

(>>=) :: Proxy a -> (a -> Proxy b) -> Proxy b #

(>>) :: Proxy a -> Proxy b -> Proxy b #

return :: a -> Proxy a #

fail :: String -> Proxy a #

Monad m => Monad (ResourceT m) 
Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

(>>=) :: ResourceT m a -> (a -> ResourceT m b) -> ResourceT m b #

(>>) :: ResourceT m a -> ResourceT m b -> ResourceT m b #

return :: a -> ResourceT m a #

fail :: String -> ResourceT m a #

Monad (Lex r) 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

(>>=) :: Lex r a -> (a -> Lex r b) -> Lex r b #

(>>) :: Lex r a -> Lex r b -> Lex r b #

return :: a -> Lex r a #

fail :: String -> Lex r a #

Monad (DocM s) 
Instance details

Defined in Language.Haskell.Exts.Pretty

Methods

(>>=) :: DocM s a -> (a -> DocM s b) -> DocM s b #

(>>) :: DocM s a -> DocM s b -> DocM s b #

return :: a -> DocM s a #

fail :: String -> DocM s a #

Monad (SetM s) 
Instance details

Defined in Data.Graph

Methods

(>>=) :: SetM s a -> (a -> SetM s b) -> SetM s b #

(>>) :: SetM s a -> SetM s b -> SetM s b #

return :: a -> SetM s a #

fail :: String -> SetM s a #

Monad f => Monad (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(>>=) :: Rec1 f a -> (a -> Rec1 f b) -> Rec1 f b #

(>>) :: Rec1 f a -> Rec1 f b -> Rec1 f b #

return :: a -> Rec1 f a #

fail :: String -> Rec1 f a #

Monad f => Monad (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

(>>=) :: Ap f a -> (a -> Ap f b) -> Ap f b #

(>>) :: Ap f a -> Ap f b -> Ap f b #

return :: a -> Ap f a #

fail :: String -> Ap f a #

Monad f => Monad (Alt f)

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Alt f a -> (a -> Alt f b) -> Alt f b #

(>>) :: Alt f a -> Alt f b -> Alt f b #

return :: a -> Alt f a #

fail :: String -> Alt f a #

Monad m => Monad (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

(>>=) :: ExceptT e m a -> (a -> ExceptT e m b) -> ExceptT e m b #

(>>) :: ExceptT e m a -> ExceptT e m b -> ExceptT e m b #

return :: a -> ExceptT e m a #

fail :: String -> ExceptT e m a #

(Applicative f, Monad f) => Monad (WhenMissing f x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)).

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

(>>=) :: WhenMissing f x a -> (a -> WhenMissing f x b) -> WhenMissing f x b #

(>>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b #

return :: a -> WhenMissing f x a #

fail :: String -> WhenMissing f x a #

(Monad m, Error e) => Monad (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

(>>=) :: ErrorT e m a -> (a -> ErrorT e m b) -> ErrorT e m b #

(>>) :: ErrorT e m a -> ErrorT e m b -> ErrorT e m b #

return :: a -> ErrorT e m a #

fail :: String -> ErrorT e m a #

Monad (Tagged s) 
Instance details

Defined in Data.Tagged

Methods

(>>=) :: Tagged s a -> (a -> Tagged s b) -> Tagged s b #

(>>) :: Tagged s a -> Tagged s b -> Tagged s b #

return :: a -> Tagged s a #

fail :: String -> Tagged s a #

Monad ((->) r :: Type -> Type)

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: (r -> a) -> (a -> r -> b) -> r -> b #

(>>) :: (r -> a) -> (r -> b) -> r -> b #

return :: a -> r -> a #

fail :: String -> r -> a #

(Monad f, Monad g) => Monad (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(>>=) :: (f :*: g) a -> (a -> (f :*: g) b) -> (f :*: g) b #

(>>) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) b #

return :: a -> (f :*: g) a #

fail :: String -> (f :*: g) a #

(Monad f, Monad g) => Monad (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

(>>=) :: Product f g a -> (a -> Product f g b) -> Product f g b #

(>>) :: Product f g a -> Product f g b -> Product f g b #

return :: a -> Product f g a #

fail :: String -> Product f g a #

Monad (ConduitT i o m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

(>>=) :: ConduitT i o m a -> (a -> ConduitT i o m b) -> ConduitT i o m b #

(>>) :: ConduitT i o m a -> ConduitT i o m b -> ConduitT i o m b #

return :: a -> ConduitT i o m a #

fail :: String -> ConduitT i o m a #

(Monad f, Applicative f) => Monad (WhenMatched f x y)

Equivalent to ReaderT Key (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

(>>=) :: WhenMatched f x y a -> (a -> WhenMatched f x y b) -> WhenMatched f x y b #

(>>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b #

return :: a -> WhenMatched f x y a #

fail :: String -> WhenMatched f x y a #

(Applicative f, Monad f) => Monad (WhenMissing f k x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)) .

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

(>>=) :: WhenMissing f k x a -> (a -> WhenMissing f k x b) -> WhenMissing f k x b #

(>>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b #

return :: a -> WhenMissing f k x a #

fail :: String -> WhenMissing f k x a #

Stream s => Monad (ParsecT e s m)

return returns a parser that succeeds without consuming input.

Instance details

Defined in Text.Megaparsec.Internal

Methods

(>>=) :: ParsecT e s m a -> (a -> ParsecT e s m b) -> ParsecT e s m b #

(>>) :: ParsecT e s m a -> ParsecT e s m b -> ParsecT e s m b #

return :: a -> ParsecT e s m a #

fail :: String -> ParsecT e s m a #

Monad f => Monad (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(>>=) :: M1 i c f a -> (a -> M1 i c f b) -> M1 i c f b #

(>>) :: M1 i c f a -> M1 i c f b -> M1 i c f b #

return :: a -> M1 i c f a #

fail :: String -> M1 i c f a #

(Monad f, Applicative f) => Monad (WhenMatched f k x y)

Equivalent to ReaderT k (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

(>>=) :: WhenMatched f k x y a -> (a -> WhenMatched f k x y b) -> WhenMatched f k x y b #

(>>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b #

return :: a -> WhenMatched f k x y a #

fail :: String -> WhenMatched f k x y a #

Monad state => Monad (Builder collection mutCollection step state err) 
Instance details

Defined in Basement.MutableBuilder

Methods

(>>=) :: Builder collection mutCollection step state err a -> (a -> Builder collection mutCollection step state err b) -> Builder collection mutCollection step state err b #

(>>) :: Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b -> Builder collection mutCollection step state err b #

return :: a -> Builder collection mutCollection step state err a #

fail :: String -> Builder collection mutCollection step state err a #

Monad m => Monad (Pipe l i o u m) 
Instance details

Defined in Data.Conduit.Internal.Pipe

Methods

(>>=) :: Pipe l i o u m a -> (a -> Pipe l i o u m b) -> Pipe l i o u m b #

(>>) :: Pipe l i o u m a -> Pipe l i o u m b -> Pipe l i o u m b #

return :: a -> Pipe l i o u m a #

fail :: String -> Pipe l i o u m a #

class Functor (f :: Type -> Type) where #

The Functor class is used for types that can be mapped over. Instances of Functor should satisfy the following laws:

fmap id  ==  id
fmap (f . g)  ==  fmap f . fmap g

The instances of Functor for lists, Maybe and IO satisfy these laws.

Minimal complete definition

fmap

Methods

fmap :: (a -> b) -> f a -> f b #

(<$) :: a -> f b -> f a infixl 4 #

Replace all locations in the input with the same value. The default definition is fmap . const, but this may be overridden with a more efficient version.

Instances
Functor []

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> [a] -> [b] #

(<$) :: a -> [b] -> [a] #

Functor Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> Maybe a -> Maybe b #

(<$) :: a -> Maybe b -> Maybe a #

Functor IO

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> IO a -> IO b #

(<$) :: a -> IO b -> IO a #

Functor Par1

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> Par1 a -> Par1 b #

(<$) :: a -> Par1 b -> Par1 a #

Functor Q 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

fmap :: (a -> b) -> Q a -> Q b #

(<$) :: a -> Q b -> Q a #

Functor Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Last a -> Last b #

(<$) :: a -> Last b -> Last a #

Functor VersionRangeF 
Instance details

Defined in Distribution.Types.VersionRange

Methods

fmap :: (a -> b) -> VersionRangeF a -> VersionRangeF b #

(<$) :: a -> VersionRangeF b -> VersionRangeF a #

Functor Last' 
Instance details

Defined in Distribution.Compat.Semigroup

Methods

fmap :: (a -> b) -> Last' a -> Last' b #

(<$) :: a -> Last' b -> Last' a #

Functor SCC

Since: containers-0.5.4

Instance details

Defined in Data.Graph

Methods

fmap :: (a -> b) -> SCC a -> SCC b #

(<$) :: a -> SCC b -> SCC a #

Functor Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

fmap :: (a -> b) -> Identity a -> Identity b #

(<$) :: a -> Identity b -> Identity a #

Functor ZipList

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a -> b) -> ZipList a -> ZipList b #

(<$) :: a -> ZipList b -> ZipList a #

Functor FromJSONKeyFunction

Only law abiding up to interpretation

Instance details

Defined in Data.Aeson.Types.FromJSON

Functor IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fmap :: (a -> b) -> IResult a -> IResult b #

(<$) :: a -> IResult b -> IResult a #

Functor Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fmap :: (a -> b) -> Result a -> Result b #

(<$) :: a -> Result b -> Result a #

Functor Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fmap :: (a -> b) -> Parser a -> Parser b #

(<$) :: a -> Parser b -> Parser a #

Functor Complex

Since: base-4.9.0.0

Instance details

Defined in Data.Complex

Methods

fmap :: (a -> b) -> Complex a -> Complex b #

(<$) :: a -> Complex b -> Complex a #

Functor Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Min a -> Min b #

(<$) :: a -> Min b -> Min a #

Functor Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Max a -> Max b #

(<$) :: a -> Max b -> Max a #

Functor First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> First a -> First b #

(<$) :: a -> First b -> First a #

Functor Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Option a -> Option b #

(<$) :: a -> Option b -> Option a #

Functor Handler

Since: base-4.6.0.0

Instance details

Defined in Control.Exception

Methods

fmap :: (a -> b) -> Handler a -> Handler b #

(<$) :: a -> Handler b -> Handler a #

Functor First

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

fmap :: (a -> b) -> First a -> First b #

(<$) :: a -> First b -> First a #

Functor Last

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

fmap :: (a -> b) -> Last a -> Last b #

(<$) :: a -> Last b -> Last a #

Functor Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Dual a -> Dual b #

(<$) :: a -> Dual b -> Dual a #

Functor Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Sum a -> Sum b #

(<$) :: a -> Sum b -> Sum a #

Functor Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Product a -> Product b #

(<$) :: a -> Product b -> Product a #

Functor Down

Since: base-4.11.0.0

Instance details

Defined in Data.Ord

Methods

fmap :: (a -> b) -> Down a -> Down b #

(<$) :: a -> Down b -> Down a #

Functor ReadP

Since: base-2.1

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

fmap :: (a -> b) -> ReadP a -> ReadP b #

(<$) :: a -> ReadP b -> ReadP a #

Functor NonEmpty

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> NonEmpty a -> NonEmpty b #

(<$) :: a -> NonEmpty b -> NonEmpty a #

Functor Put 
Instance details

Defined in Data.ByteString.Builder.Internal

Methods

fmap :: (a -> b) -> Put a -> Put b #

(<$) :: a -> Put b -> Put a #

Functor Flush 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fmap :: (a -> b) -> Flush a -> Flush b #

(<$) :: a -> Flush b -> Flush a #

Functor IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

fmap :: (a -> b) -> IntMap a -> IntMap b #

(<$) :: a -> IntMap b -> IntMap a #

Functor Tree 
Instance details

Defined in Data.Tree

Methods

fmap :: (a -> b) -> Tree a -> Tree b #

(<$) :: a -> Tree b -> Tree a #

Functor Seq 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> Seq a -> Seq b #

(<$) :: a -> Seq b -> Seq a #

Functor FingerTree 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> FingerTree a -> FingerTree b #

(<$) :: a -> FingerTree b -> FingerTree a #

Functor Digit 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> Digit a -> Digit b #

(<$) :: a -> Digit b -> Digit a #

Functor Node 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> Node a -> Node b #

(<$) :: a -> Node b -> Node a #

Functor Elem 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> Elem a -> Elem b #

(<$) :: a -> Elem b -> Elem a #

Functor ViewL 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> ViewL a -> ViewL b #

(<$) :: a -> ViewL b -> ViewL a #

Functor ViewR 
Instance details

Defined in Data.Sequence.Internal

Methods

fmap :: (a -> b) -> ViewR a -> ViewR b #

(<$) :: a -> ViewR b -> ViewR a #

Functor CryptoFailable 
Instance details

Defined in Crypto.Error.Types

Methods

fmap :: (a -> b) -> CryptoFailable a -> CryptoFailable b #

(<$) :: a -> CryptoFailable b -> CryptoFailable a #

Functor DList 
Instance details

Defined in Data.DList

Methods

fmap :: (a -> b) -> DList a -> DList b #

(<$) :: a -> DList b -> DList a #

Functor Name 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Name a -> Name b #

(<$) :: a -> Name b -> Name a #

Functor Scoped 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fmap :: (a -> b) -> Scoped a -> Scoped b #

(<$) :: a -> Scoped b -> Scoped a #

Functor NameInfo 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fmap :: (a -> b) -> NameInfo a -> NameInfo b #

(<$) :: a -> NameInfo b -> NameInfo a #

Functor Error 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fmap :: (a -> b) -> Error a -> Error b #

(<$) :: a -> Error b -> Error a #

Functor P 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fmap :: (a -> b) -> P a -> P b #

(<$) :: a -> P b -> P a #

Functor NonGreedy 
Instance details

Defined in Language.Haskell.Exts.Parser

Methods

fmap :: (a -> b) -> NonGreedy a -> NonGreedy b #

(<$) :: a -> NonGreedy b -> NonGreedy a #

Functor ListOf 
Instance details

Defined in Language.Haskell.Exts.Parser

Methods

fmap :: (a -> b) -> ListOf a -> ListOf b #

(<$) :: a -> ListOf b -> ListOf a #

Functor ParseResult 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fmap :: (a -> b) -> ParseResult a -> ParseResult b #

(<$) :: a -> ParseResult b -> ParseResult a #

Functor ModuleName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ModuleName a -> ModuleName b #

(<$) :: a -> ModuleName b -> ModuleName a #

Functor SpecialCon 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> SpecialCon a -> SpecialCon b #

(<$) :: a -> SpecialCon b -> SpecialCon a #

Functor QName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> QName a -> QName b #

(<$) :: a -> QName b -> QName a #

Functor IPName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> IPName a -> IPName b #

(<$) :: a -> IPName b -> IPName a #

Functor QOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> QOp a -> QOp b #

(<$) :: a -> QOp b -> QOp a #

Functor Op 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Op a -> Op b #

(<$) :: a -> Op b -> Op a #

Functor CName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> CName a -> CName b #

(<$) :: a -> CName b -> CName a #

Functor Module 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Module a -> Module b #

(<$) :: a -> Module b -> Module a #

Functor ModuleHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ModuleHead a -> ModuleHead b #

(<$) :: a -> ModuleHead b -> ModuleHead a #

Functor ExportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ExportSpecList a -> ExportSpecList b #

(<$) :: a -> ExportSpecList b -> ExportSpecList a #

Functor ExportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ExportSpec a -> ExportSpec b #

(<$) :: a -> ExportSpec b -> ExportSpec a #

Functor EWildcard 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> EWildcard a -> EWildcard b #

(<$) :: a -> EWildcard b -> EWildcard a #

Functor Namespace 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Namespace a -> Namespace b #

(<$) :: a -> Namespace b -> Namespace a #

Functor ImportDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ImportDecl a -> ImportDecl b #

(<$) :: a -> ImportDecl b -> ImportDecl a #

Functor ImportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ImportSpecList a -> ImportSpecList b #

(<$) :: a -> ImportSpecList b -> ImportSpecList a #

Functor ImportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ImportSpec a -> ImportSpec b #

(<$) :: a -> ImportSpec b -> ImportSpec a #

Functor Assoc 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Assoc a -> Assoc b #

(<$) :: a -> Assoc b -> Assoc a #

Functor Decl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Decl a -> Decl b #

(<$) :: a -> Decl b -> Decl a #

Functor PatternSynDirection 
Instance details

Defined in Language.Haskell.Exts.Syntax

Functor TypeEqn 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> TypeEqn a -> TypeEqn b #

(<$) :: a -> TypeEqn b -> TypeEqn a #

Functor Annotation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Annotation a -> Annotation b #

(<$) :: a -> Annotation b -> Annotation a #

Functor BooleanFormula 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> BooleanFormula a -> BooleanFormula b #

(<$) :: a -> BooleanFormula b -> BooleanFormula a #

Functor Role 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Role a -> Role b #

(<$) :: a -> Role b -> Role a #

Functor DataOrNew 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> DataOrNew a -> DataOrNew b #

(<$) :: a -> DataOrNew b -> DataOrNew a #

Functor InjectivityInfo 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> InjectivityInfo a -> InjectivityInfo b #

(<$) :: a -> InjectivityInfo b -> InjectivityInfo a #

Functor ResultSig 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ResultSig a -> ResultSig b #

(<$) :: a -> ResultSig b -> ResultSig a #

Functor DeclHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> DeclHead a -> DeclHead b #

(<$) :: a -> DeclHead b -> DeclHead a #

Functor InstRule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> InstRule a -> InstRule b #

(<$) :: a -> InstRule b -> InstRule a #

Functor InstHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> InstHead a -> InstHead b #

(<$) :: a -> InstHead b -> InstHead a #

Functor Deriving 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Deriving a -> Deriving b #

(<$) :: a -> Deriving b -> Deriving a #

Functor DerivStrategy 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> DerivStrategy a -> DerivStrategy b #

(<$) :: a -> DerivStrategy b -> DerivStrategy a #

Functor Binds 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Binds a -> Binds b #

(<$) :: a -> Binds b -> Binds a #

Functor IPBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> IPBind a -> IPBind b #

(<$) :: a -> IPBind b -> IPBind a #

Functor Match 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Match a -> Match b #

(<$) :: a -> Match b -> Match a #

Functor QualConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> QualConDecl a -> QualConDecl b #

(<$) :: a -> QualConDecl b -> QualConDecl a #

Functor ConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ConDecl a -> ConDecl b #

(<$) :: a -> ConDecl b -> ConDecl a #

Functor FieldDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> FieldDecl a -> FieldDecl b #

(<$) :: a -> FieldDecl b -> FieldDecl a #

Functor GadtDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> GadtDecl a -> GadtDecl b #

(<$) :: a -> GadtDecl b -> GadtDecl a #

Functor ClassDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ClassDecl a -> ClassDecl b #

(<$) :: a -> ClassDecl b -> ClassDecl a #

Functor InstDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> InstDecl a -> InstDecl b #

(<$) :: a -> InstDecl b -> InstDecl a #

Functor BangType 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> BangType a -> BangType b #

(<$) :: a -> BangType b -> BangType a #

Functor Unpackedness 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Unpackedness a -> Unpackedness b #

(<$) :: a -> Unpackedness b -> Unpackedness a #

Functor Rhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Rhs a -> Rhs b #

(<$) :: a -> Rhs b -> Rhs a #

Functor GuardedRhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> GuardedRhs a -> GuardedRhs b #

(<$) :: a -> GuardedRhs b -> GuardedRhs a #

Functor Type 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Type a -> Type b #

(<$) :: a -> Type b -> Type a #

Functor MaybePromotedName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Functor Promoted 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Promoted a -> Promoted b #

(<$) :: a -> Promoted b -> Promoted a #

Functor TyVarBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> TyVarBind a -> TyVarBind b #

(<$) :: a -> TyVarBind b -> TyVarBind a #

Functor Kind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Kind a -> Kind b #

(<$) :: a -> Kind b -> Kind a #

Functor FunDep 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> FunDep a -> FunDep b #

(<$) :: a -> FunDep b -> FunDep a #

Functor Context 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Context a -> Context b #

(<$) :: a -> Context b -> Context a #

Functor Asst 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Asst a -> Asst b #

(<$) :: a -> Asst b -> Asst a #

Functor Literal 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Literal a -> Literal b #

(<$) :: a -> Literal b -> Literal a #

Functor Sign 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Sign a -> Sign b #

(<$) :: a -> Sign b -> Sign a #

Functor Exp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Exp a -> Exp b #

(<$) :: a -> Exp b -> Exp a #

Functor XName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> XName a -> XName b #

(<$) :: a -> XName b -> XName a #

Functor XAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> XAttr a -> XAttr b #

(<$) :: a -> XAttr b -> XAttr a #

Functor Bracket 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Bracket a -> Bracket b #

(<$) :: a -> Bracket b -> Bracket a #

Functor Splice 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Splice a -> Splice b #

(<$) :: a -> Splice b -> Splice a #

Functor Safety 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Safety a -> Safety b #

(<$) :: a -> Safety b -> Safety a #

Functor CallConv 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> CallConv a -> CallConv b #

(<$) :: a -> CallConv b -> CallConv a #

Functor ModulePragma 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> ModulePragma a -> ModulePragma b #

(<$) :: a -> ModulePragma b -> ModulePragma a #

Functor Overlap 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Overlap a -> Overlap b #

(<$) :: a -> Overlap b -> Overlap a #

Functor Activation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Activation a -> Activation b #

(<$) :: a -> Activation b -> Activation a #

Functor Rule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Rule a -> Rule b #

(<$) :: a -> Rule b -> Rule a #

Functor RuleVar 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> RuleVar a -> RuleVar b #

(<$) :: a -> RuleVar b -> RuleVar a #

Functor WarningText 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> WarningText a -> WarningText b #

(<$) :: a -> WarningText b -> WarningText a #

Functor Pat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Pat a -> Pat b #

(<$) :: a -> Pat b -> Pat a #

Functor PXAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> PXAttr a -> PXAttr b #

(<$) :: a -> PXAttr b -> PXAttr a #

Functor RPatOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> RPatOp a -> RPatOp b #

(<$) :: a -> RPatOp b -> RPatOp a #

Functor RPat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> RPat a -> RPat b #

(<$) :: a -> RPat b -> RPat a #

Functor PatField 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> PatField a -> PatField b #

(<$) :: a -> PatField b -> PatField a #

Functor Stmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Stmt a -> Stmt b #

(<$) :: a -> Stmt b -> Stmt a #

Functor QualStmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> QualStmt a -> QualStmt b #

(<$) :: a -> QualStmt b -> QualStmt a #

Functor FieldUpdate 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> FieldUpdate a -> FieldUpdate b #

(<$) :: a -> FieldUpdate b -> FieldUpdate a #

Functor Alt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fmap :: (a -> b) -> Alt a -> Alt b #

(<$) :: a -> Alt b -> Alt a #

Functor List 
Instance details

Defined in Data.Aeson.Config.Types

Methods

fmap :: (a -> b) -> List a -> List b #

(<$) :: a -> List b -> List a #

Functor Section 
Instance details

Defined in Hpack.Config

Methods

fmap :: (a -> b) -> Section a -> Section b #

(<$) :: a -> Section b -> Section a #

Functor Conditional 
Instance details

Defined in Hpack.Config

Methods

fmap :: (a -> b) -> Conditional a -> Conditional b #

(<$) :: a -> Conditional b -> Conditional a #

Functor HistoriedResponse 
Instance details

Defined in Network.HTTP.Client

Functor Response 
Instance details

Defined in Network.HTTP.Client.Types

Methods

fmap :: (a -> b) -> Response a -> Response b #

(<$) :: a -> Response b -> Response a #

Functor Vector 
Instance details

Defined in Data.Vector

Methods

fmap :: (a -> b) -> Vector a -> Vector b #

(<$) :: a -> Vector b -> Vector a #

Functor ErrorItem 
Instance details

Defined in Text.Megaparsec.Error

Methods

fmap :: (a -> b) -> ErrorItem a -> ErrorItem b #

(<$) :: a -> ErrorItem b -> ErrorItem a #

Functor ErrorFancy 
Instance details

Defined in Text.Megaparsec.Error

Methods

fmap :: (a -> b) -> ErrorFancy a -> ErrorFancy b #

(<$) :: a -> ErrorFancy b -> ErrorFancy a #

Functor PointedList 
Instance details

Defined in Data.List.PointedList

Methods

fmap :: (a -> b) -> PointedList a -> PointedList b #

(<$) :: a -> PointedList b -> PointedList a #

Functor Doc 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

fmap :: (a -> b) -> Doc a -> Doc b #

(<$) :: a -> Doc b -> Doc a #

Functor AnnotDetails 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

fmap :: (a -> b) -> AnnotDetails a -> AnnotDetails b #

(<$) :: a -> AnnotDetails b -> AnnotDetails a #

Functor Span 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

fmap :: (a -> b) -> Span a -> Span b #

(<$) :: a -> Span b -> Span a #

Functor SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Methods

fmap :: (a -> b) -> SmallArray a -> SmallArray b #

(<$) :: a -> SmallArray b -> SmallArray a #

Functor Array 
Instance details

Defined in Data.Primitive.Array

Methods

fmap :: (a -> b) -> Array a -> Array b #

(<$) :: a -> Array b -> Array a #

Functor Stream 
Instance details

Defined in Codec.Compression.Zlib.Stream

Methods

fmap :: (a -> b) -> Stream a -> Stream b #

(<$) :: a -> Stream b -> Stream a #

Functor P

Since: base-4.8.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

fmap :: (a -> b) -> P a -> P b #

(<$) :: a -> P b -> P a #

Functor GuardedAlt 
Instance details

Defined in Language.Haskell.Exts.ExactPrint

Methods

fmap :: (a -> b) -> GuardedAlt a -> GuardedAlt b #

(<$) :: a -> GuardedAlt b -> GuardedAlt a #

Functor GuardedAlts 
Instance details

Defined in Language.Haskell.Exts.ExactPrint

Methods

fmap :: (a -> b) -> GuardedAlts a -> GuardedAlts b #

(<$) :: a -> GuardedAlts b -> GuardedAlts a #

Functor EP 
Instance details

Defined in Language.Haskell.Exts.ExactPrint

Methods

fmap :: (a -> b) -> EP a -> EP b #

(<$) :: a -> EP b -> EP a #

Functor (Either a)

Since: base-3.0

Instance details

Defined in Data.Either

Methods

fmap :: (a0 -> b) -> Either a a0 -> Either a b #

(<$) :: a0 -> Either a b -> Either a a0 #

Functor (V1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> V1 a -> V1 b #

(<$) :: a -> V1 b -> V1 a #

Functor (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> U1 a -> U1 b #

(<$) :: a -> U1 b -> U1 a #

Functor ((,) a)

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a0 -> b) -> (a, a0) -> (a, b) #

(<$) :: a0 -> (a, b) -> (a, a0) #

Functor (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

fmap :: (a -> b) -> Map k a -> Map k b #

(<$) :: a -> Map k b -> Map k a #

Monad m => Functor (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a -> b) -> WrappedMonad m a -> WrappedMonad m b #

(<$) :: a -> WrappedMonad m b -> WrappedMonad m a #

Functor (HashMap k) 
Instance details

Defined in Data.HashMap.Base

Methods

fmap :: (a -> b) -> HashMap k a -> HashMap k b #

(<$) :: a -> HashMap k b -> HashMap k a #

Functor (IResult i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

fmap :: (a -> b) -> IResult i a -> IResult i b #

(<$) :: a -> IResult i b -> IResult i a #

Functor (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

fmap :: (a -> b) -> Parser i a -> Parser i b #

(<$) :: a -> Parser i b -> Parser i a #

Functor (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a0 -> b) -> Arg a a0 -> Arg a b #

(<$) :: a0 -> Arg a b -> Arg a a0 #

Functor (Proxy :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Proxy

Methods

fmap :: (a -> b) -> Proxy a -> Proxy b #

(<$) :: a -> Proxy b -> Proxy a #

Monad m => Functor (ZipSource m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fmap :: (a -> b) -> ZipSource m a -> ZipSource m b #

(<$) :: a -> ZipSource m b -> ZipSource m a #

Functor m => Functor (ResourceT m) 
Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

fmap :: (a -> b) -> ResourceT m a -> ResourceT m b #

(<$) :: a -> ResourceT m b -> ResourceT m a #

Functor (Lex r) 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fmap :: (a -> b) -> Lex r a -> Lex r b #

(<$) :: a -> Lex r b -> Lex r a #

Functor (DocM s) 
Instance details

Defined in Language.Haskell.Exts.Pretty

Methods

fmap :: (a -> b) -> DocM s a -> DocM s b #

(<$) :: a -> DocM s b -> DocM s a #

Functor (Product a) 
Instance details

Defined in Data.Aeson.Config.Types

Methods

fmap :: (a0 -> b) -> Product a a0 -> Product a b #

(<$) :: a0 -> Product a b -> Product a a0 #

Functor (SetM s) 
Instance details

Defined in Data.Graph

Methods

fmap :: (a -> b) -> SetM s a -> SetM s b #

(<$) :: a -> SetM s b -> SetM s a #

Functor f => Functor (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> Rec1 f a -> Rec1 f b #

(<$) :: a -> Rec1 f b -> Rec1 f a #

Functor (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Char a -> URec Char b #

(<$) :: a -> URec Char b -> URec Char a #

Functor (URec Double :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Double a -> URec Double b #

(<$) :: a -> URec Double b -> URec Double a #

Functor (URec Float :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Float a -> URec Float b #

(<$) :: a -> URec Float b -> URec Float a #

Functor (URec Int :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Int a -> URec Int b #

(<$) :: a -> URec Int b -> URec Int a #

Functor (URec Word :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Word a -> URec Word b #

(<$) :: a -> URec Word b -> URec Word a #

Functor (URec (Ptr ()) :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec (Ptr ()) a -> URec (Ptr ()) b #

(<$) :: a -> URec (Ptr ()) b -> URec (Ptr ()) a #

Functor (Const m :: Type -> Type)

Since: base-2.1

Instance details

Defined in Data.Functor.Const

Methods

fmap :: (a -> b) -> Const m a -> Const m b #

(<$) :: a -> Const m b -> Const m a #

Arrow a => Functor (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 #

(<$) :: a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 #

Functor f => Functor (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

fmap :: (a -> b) -> Ap f a -> Ap f b #

(<$) :: a -> Ap f b -> Ap f a #

Functor f => Functor (Alt f)

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Alt f a -> Alt f b #

(<$) :: a -> Alt f b -> Alt f a #

Functor m => Functor (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

fmap :: (a -> b) -> ExceptT e m a -> ExceptT e m b #

(<$) :: a -> ExceptT e m b -> ExceptT e m a #

Monad m => Functor (ZipSink i m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fmap :: (a -> b) -> ZipSink i m a -> ZipSink i m b #

(<$) :: a -> ZipSink i m b -> ZipSink i m a #

(Applicative f, Monad f) => Functor (WhenMissing f x)

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

fmap :: (a -> b) -> WhenMissing f x a -> WhenMissing f x b #

(<$) :: a -> WhenMissing f x b -> WhenMissing f x a #

Functor m => Functor (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

fmap :: (a -> b) -> ErrorT e m a -> ErrorT e m b #

(<$) :: a -> ErrorT e m b -> ErrorT e m a #

Functor (Tagged s) 
Instance details

Defined in Data.Tagged

Methods

fmap :: (a -> b) -> Tagged s a -> Tagged s b #

(<$) :: a -> Tagged s b -> Tagged s a #

Functor ((->) r :: Type -> Type)

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> (r -> a) -> r -> b #

(<$) :: a -> (r -> b) -> r -> a #

Functor (K1 i c :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> K1 i c a -> K1 i c b #

(<$) :: a -> K1 i c b -> K1 i c a #

(Functor f, Functor g) => Functor (f :+: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> (f :+: g) a -> (f :+: g) b #

(<$) :: a -> (f :+: g) b -> (f :+: g) a #

(Functor f, Functor g) => Functor (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> (f :*: g) a -> (f :*: g) b #

(<$) :: a -> (f :*: g) b -> (f :*: g) a #

(Functor f, Functor g) => Functor (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

fmap :: (a -> b) -> Product f g a -> Product f g b #

(<$) :: a -> Product f g b -> Product f g a #

(Functor f, Functor g) => Functor (Sum f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Sum

Methods

fmap :: (a -> b) -> Sum f g a -> Sum f g b #

(<$) :: a -> Sum f g b -> Sum f g a #

Functor (ConduitT i o m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fmap :: (a -> b) -> ConduitT i o m a -> ConduitT i o m b #

(<$) :: a -> ConduitT i o m b -> ConduitT i o m a #

Functor (ZipConduit i o m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fmap :: (a -> b) -> ZipConduit i o m a -> ZipConduit i o m b #

(<$) :: a -> ZipConduit i o m b -> ZipConduit i o m a #

Functor f => Functor (WhenMatched f x y)

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

fmap :: (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b #

(<$) :: a -> WhenMatched f x y b -> WhenMatched f x y a #

(Applicative f, Monad f) => Functor (WhenMissing f k x)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

fmap :: (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b #

(<$) :: a -> WhenMissing f k x b -> WhenMissing f k x a #

Functor (ParsecT e s m) 
Instance details

Defined in Text.Megaparsec.Internal

Methods

fmap :: (a -> b) -> ParsecT e s m a -> ParsecT e s m b #

(<$) :: a -> ParsecT e s m b -> ParsecT e s m a #

Functor (CommonOptions cSources cxxSources jsSources) 
Instance details

Defined in Hpack.Config

Methods

fmap :: (a -> b) -> CommonOptions cSources cxxSources jsSources a -> CommonOptions cSources cxxSources jsSources b #

(<$) :: a -> CommonOptions cSources cxxSources jsSources b -> CommonOptions cSources cxxSources jsSources a #

Functor (ConditionalSection cSources cxxSources jsSources) 
Instance details

Defined in Hpack.Config

Methods

fmap :: (a -> b) -> ConditionalSection cSources cxxSources jsSources a -> ConditionalSection cSources cxxSources jsSources b #

(<$) :: a -> ConditionalSection cSources cxxSources jsSources b -> ConditionalSection cSources cxxSources jsSources a #

Functor (ThenElse cSources cxxSources jsSources) 
Instance details

Defined in Hpack.Config

Methods

fmap :: (a -> b) -> ThenElse cSources cxxSources jsSources a -> ThenElse cSources cxxSources jsSources b #

(<$) :: a -> ThenElse cSources cxxSources jsSources b -> ThenElse cSources cxxSources jsSources a #

Functor f => Functor (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> M1 i c f a -> M1 i c f b #

(<$) :: a -> M1 i c f b -> M1 i c f a #

(Functor f, Functor g) => Functor (f :.: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> (f :.: g) a -> (f :.: g) b #

(<$) :: a -> (f :.: g) b -> (f :.: g) a #

(Functor f, Functor g) => Functor (Compose f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

fmap :: (a -> b) -> Compose f g a -> Compose f g b #

(<$) :: a -> Compose f g b -> Compose f g a #

Functor g => Functor (Joker g a) 
Instance details

Defined in Data.Bifunctor.Joker

Methods

fmap :: (a0 -> b) -> Joker g a a0 -> Joker g a b #

(<$) :: a0 -> Joker g a b -> Joker g a a0 #

Functor (Clown f a :: Type -> Type) 
Instance details

Defined in Data.Bifunctor.Clown

Methods

fmap :: (a0 -> b) -> Clown f a a0 -> Clown f a b #

(<$) :: a0 -> Clown f a b -> Clown f a a0 #

Functor f => Functor (WhenMatched f k x y)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

fmap :: (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b #

(<$) :: a -> WhenMatched f k x y b -> WhenMatched f k x y a #

Monad state => Functor (Builder collection mutCollection step state err) 
Instance details

Defined in Basement.MutableBuilder

Methods

fmap :: (a -> b) -> Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b #

(<$) :: a -> Builder collection mutCollection step state err b -> Builder collection mutCollection step state err a #

Monad m => Functor (Pipe l i o u m) 
Instance details

Defined in Data.Conduit.Internal.Pipe

Methods

fmap :: (a -> b) -> Pipe l i o u m a -> Pipe l i o u m b #

(<$) :: a -> Pipe l i o u m b -> Pipe l i o u m a #

(Functor f, Bifunctor p) => Functor (Tannen f p a) 
Instance details

Defined in Data.Bifunctor.Tannen

Methods

fmap :: (a0 -> b) -> Tannen f p a a0 -> Tannen f p a b #

(<$) :: a0 -> Tannen f p a b -> Tannen f p a a0 #

(Bifunctor p, Functor g) => Functor (Biff p f g a) 
Instance details

Defined in Data.Bifunctor.Biff

Methods

fmap :: (a0 -> b) -> Biff p f g a a0 -> Biff p f g a b #

(<$) :: a0 -> Biff p f g a b -> Biff p f g a a0 #

class Monad m => MonadFail (m :: Type -> Type) where #

When a value is bound in do-notation, the pattern on the left hand side of <- might not match. In this case, this class provides a function to recover.

A Monad without a MonadFail instance may only be used in conjunction with pattern that always match, such as newtypes, tuples, data types with only a single data constructor, and irrefutable patterns (~pat).

Instances of MonadFail should satisfy the following law: fail s should be a left zero for >>=,

fail s >>= f  =  fail s

If your Monad is also MonadPlus, a popular definition is

fail _ = mzero

Since: base-4.9.0.0

Methods

fail :: String -> m a #

Instances
MonadFail []

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.Fail

Methods

fail :: String -> [a] #

MonadFail Maybe

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.Fail

Methods

fail :: String -> Maybe a #

MonadFail IO

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.Fail

Methods

fail :: String -> IO a #

MonadFail Q 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

fail :: String -> Q a #

MonadFail IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fail :: String -> IResult a #

MonadFail Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fail :: String -> Result a #

MonadFail Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fail :: String -> Parser a #

MonadFail ReadP

Since: base-4.9.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

fail :: String -> ReadP a #

MonadFail P 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fail :: String -> P a #

MonadFail ParseResult 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fail :: String -> ParseResult a #

MonadFail P

Since: base-4.9.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

fail :: String -> P a #

MonadFail (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

fail :: String -> Parser i a #

MonadFail m => MonadFail (ResourceT m)

Since: resourcet-1.2.2

Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

fail :: String -> ResourceT m a #

MonadFail (Lex r) 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

fail :: String -> Lex r a #

MonadFail f => MonadFail (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

fail :: String -> Ap f a #

MonadFail m => MonadFail (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

fail :: String -> ExceptT e m a #

(Monad m, Error e) => MonadFail (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

fail :: String -> ErrorT e m a #

MonadFail m => MonadFail (ConduitT i o m)

Since: conduit-1.3.1

Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

fail :: String -> ConduitT i o m a #

Stream s => MonadFail (ParsecT e s m) 
Instance details

Defined in Text.Megaparsec.Internal

Methods

fail :: String -> ParsecT e s m a #

class Functor f => Applicative (f :: Type -> Type) where #

A functor with application, providing operations to

  • embed pure expressions (pure), and
  • sequence computations and combine their results (<*> and liftA2).

A minimal complete definition must include implementations of pure and of either <*> or liftA2. If it defines both, then they must behave the same as their default definitions:

(<*>) = liftA2 id
liftA2 f x y = f <$> x <*> y

Further, any definition must satisfy the following:

identity
pure id <*> v = v
composition
pure (.) <*> u <*> v <*> w = u <*> (v <*> w)
homomorphism
pure f <*> pure x = pure (f x)
interchange
u <*> pure y = pure ($ y) <*> u

The other methods have the following default definitions, which may be overridden with equivalent specialized implementations:

As a consequence of these laws, the Functor instance for f will satisfy

It may be useful to note that supposing

forall x y. p (q x y) = f x . g y

it follows from the above that

liftA2 p (liftA2 q u v) = liftA2 f u . liftA2 g v

If f is also a Monad, it should satisfy

(which implies that pure and <*> satisfy the applicative functor laws).

Minimal complete definition

pure, ((<*>) | liftA2)

Methods

pure :: a -> f a #

Lift a value.

(<*>) :: f (a -> b) -> f a -> f b infixl 4 #

Sequential application.

A few functors support an implementation of <*> that is more efficient than the default one.

liftA2 :: (a -> b -> c) -> f a -> f b -> f c #

Lift a binary function to actions.

Some functors support an implementation of liftA2 that is more efficient than the default one. In particular, if fmap is an expensive operation, it is likely better to use liftA2 than to fmap over the structure and then use <*>.

(*>) :: f a -> f b -> f b infixl 4 #

Sequence actions, discarding the value of the first argument.

(<*) :: f a -> f b -> f a infixl 4 #

Sequence actions, discarding the value of the second argument.

Instances
Applicative []

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> [a] #

(<*>) :: [a -> b] -> [a] -> [b] #

liftA2 :: (a -> b -> c) -> [a] -> [b] -> [c] #

(*>) :: [a] -> [b] -> [b] #

(<*) :: [a] -> [b] -> [a] #

Applicative Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> Maybe a #

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b #

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c #

(*>) :: Maybe a -> Maybe b -> Maybe b #

(<*) :: Maybe a -> Maybe b -> Maybe a #

Applicative IO

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> IO a #

(<*>) :: IO (a -> b) -> IO a -> IO b #

liftA2 :: (a -> b -> c) -> IO a -> IO b -> IO c #

(*>) :: IO a -> IO b -> IO b #

(<*) :: IO a -> IO b -> IO a #

Applicative Par1

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> Par1 a #

(<*>) :: Par1 (a -> b) -> Par1 a -> Par1 b #

liftA2 :: (a -> b -> c) -> Par1 a -> Par1 b -> Par1 c #

(*>) :: Par1 a -> Par1 b -> Par1 b #

(<*) :: Par1 a -> Par1 b -> Par1 a #

Applicative Q 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

pure :: a -> Q a #

(<*>) :: Q (a -> b) -> Q a -> Q b #

liftA2 :: (a -> b -> c) -> Q a -> Q b -> Q c #

(*>) :: Q a -> Q b -> Q b #

(<*) :: Q a -> Q b -> Q a #

Applicative Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Last a #

(<*>) :: Last (a -> b) -> Last a -> Last b #

liftA2 :: (a -> b -> c) -> Last a -> Last b -> Last c #

(*>) :: Last a -> Last b -> Last b #

(<*) :: Last a -> Last b -> Last a #

Applicative Last' 
Instance details

Defined in Distribution.Compat.Semigroup

Methods

pure :: a -> Last' a #

(<*>) :: Last' (a -> b) -> Last' a -> Last' b #

liftA2 :: (a -> b -> c) -> Last' a -> Last' b -> Last' c #

(*>) :: Last' a -> Last' b -> Last' b #

(<*) :: Last' a -> Last' b -> Last' a #

Applicative Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

pure :: a -> Identity a #

(<*>) :: Identity (a -> b) -> Identity a -> Identity b #

liftA2 :: (a -> b -> c) -> Identity a -> Identity b -> Identity c #

(*>) :: Identity a -> Identity b -> Identity b #

(<*) :: Identity a -> Identity b -> Identity a #

Applicative ZipList
f '<$>' 'ZipList' xs1 '<*>' ... '<*>' 'ZipList' xsN
    = 'ZipList' (zipWithN f xs1 ... xsN)

where zipWithN refers to the zipWith function of the appropriate arity (zipWith, zipWith3, zipWith4, ...). For example:

(\a b c -> stimes c [a, b]) <$> ZipList "abcd" <*> ZipList "567" <*> ZipList [1..]
    = ZipList (zipWith3 (\a b c -> stimes c [a, b]) "abcd" "567" [1..])
    = ZipList {getZipList = ["a5","b6b6","c7c7c7"]}

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a -> ZipList a #

(<*>) :: ZipList (a -> b) -> ZipList a -> ZipList b #

liftA2 :: (a -> b -> c) -> ZipList a -> ZipList b -> ZipList c #

(*>) :: ZipList a -> ZipList b -> ZipList b #

(<*) :: ZipList a -> ZipList b -> ZipList a #

Applicative IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

pure :: a -> IResult a #

(<*>) :: IResult (a -> b) -> IResult a -> IResult b #

liftA2 :: (a -> b -> c) -> IResult a -> IResult b -> IResult c #

(*>) :: IResult a -> IResult b -> IResult b #

(<*) :: IResult a -> IResult b -> IResult a #

Applicative Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

pure :: a -> Result a #

(<*>) :: Result (a -> b) -> Result a -> Result b #

liftA2 :: (a -> b -> c) -> Result a -> Result b -> Result c #

(*>) :: Result a -> Result b -> Result b #

(<*) :: Result a -> Result b -> Result a #

Applicative Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

pure :: a -> Parser a #

(<*>) :: Parser (a -> b) -> Parser a -> Parser b #

liftA2 :: (a -> b -> c) -> Parser a -> Parser b -> Parser c #

(*>) :: Parser a -> Parser b -> Parser b #

(<*) :: Parser a -> Parser b -> Parser a #

Applicative Complex

Since: base-4.9.0.0

Instance details

Defined in Data.Complex

Methods

pure :: a -> Complex a #

(<*>) :: Complex (a -> b) -> Complex a -> Complex b #

liftA2 :: (a -> b -> c) -> Complex a -> Complex b -> Complex c #

(*>) :: Complex a -> Complex b -> Complex b #

(<*) :: Complex a -> Complex b -> Complex a #

Applicative Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Min a #

(<*>) :: Min (a -> b) -> Min a -> Min b #

liftA2 :: (a -> b -> c) -> Min a -> Min b -> Min c #

(*>) :: Min a -> Min b -> Min b #

(<*) :: Min a -> Min b -> Min a #

Applicative Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Max a #

(<*>) :: Max (a -> b) -> Max a -> Max b #

liftA2 :: (a -> b -> c) -> Max a -> Max b -> Max c #

(*>) :: Max a -> Max b -> Max b #

(<*) :: Max a -> Max b -> Max a #

Applicative First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> First a #

(<*>) :: First (a -> b) -> First a -> First b #

liftA2 :: (a -> b -> c) -> First a -> First b -> First c #

(*>) :: First a -> First b -> First b #

(<*) :: First a -> First b -> First a #

Applicative Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Option a #

(<*>) :: Option (a -> b) -> Option a -> Option b #

liftA2 :: (a -> b -> c) -> Option a -> Option b -> Option c #

(*>) :: Option a -> Option b -> Option b #

(<*) :: Option a -> Option b -> Option a #

Applicative First

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

pure :: a -> First a #

(<*>) :: First (a -> b) -> First a -> First b #

liftA2 :: (a -> b -> c) -> First a -> First b -> First c #

(*>) :: First a -> First b -> First b #

(<*) :: First a -> First b -> First a #

Applicative Last

Since: base-4.8.0.0

Instance details

Defined in Data.Monoid

Methods

pure :: a -> Last a #

(<*>) :: Last (a -> b) -> Last a -> Last b #

liftA2 :: (a -> b -> c) -> Last a -> Last b -> Last c #

(*>) :: Last a -> Last b -> Last b #

(<*) :: Last a -> Last b -> Last a #

Applicative Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Dual a #

(<*>) :: Dual (a -> b) -> Dual a -> Dual b #

liftA2 :: (a -> b -> c) -> Dual a -> Dual b -> Dual c #

(*>) :: Dual a -> Dual b -> Dual b #

(<*) :: Dual a -> Dual b -> Dual a #

Applicative Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Sum a #

(<*>) :: Sum (a -> b) -> Sum a -> Sum b #

liftA2 :: (a -> b -> c) -> Sum a -> Sum b -> Sum c #

(*>) :: Sum a -> Sum b -> Sum b #

(<*) :: Sum a -> Sum b -> Sum a #

Applicative Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Product a #

(<*>) :: Product (a -> b) -> Product a -> Product b #

liftA2 :: (a -> b -> c) -> Product a -> Product b -> Product c #

(*>) :: Product a -> Product b -> Product b #

(<*) :: Product a -> Product b -> Product a #

Applicative Down

Since: base-4.11.0.0

Instance details

Defined in Data.Ord

Methods

pure :: a -> Down a #

(<*>) :: Down (a -> b) -> Down a -> Down b #

liftA2 :: (a -> b -> c) -> Down a -> Down b -> Down c #

(*>) :: Down a -> Down b -> Down b #

(<*) :: Down a -> Down b -> Down a #

Applicative ReadP

Since: base-4.6.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

pure :: a -> ReadP a #

(<*>) :: ReadP (a -> b) -> ReadP a -> ReadP b #

liftA2 :: (a -> b -> c) -> ReadP a -> ReadP b -> ReadP c #

(*>) :: ReadP a -> ReadP b -> ReadP b #

(<*) :: ReadP a -> ReadP b -> ReadP a #

Applicative NonEmpty

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

pure :: a -> NonEmpty a #

(<*>) :: NonEmpty (a -> b) -> NonEmpty a -> NonEmpty b #

liftA2 :: (a -> b -> c) -> NonEmpty a -> NonEmpty b -> NonEmpty c #

(*>) :: NonEmpty a -> NonEmpty b -> NonEmpty b #

(<*) :: NonEmpty a -> NonEmpty b -> NonEmpty a #

Applicative Put 
Instance details

Defined in Data.ByteString.Builder.Internal

Methods

pure :: a -> Put a #

(<*>) :: Put (a -> b) -> Put a -> Put b #

liftA2 :: (a -> b -> c) -> Put a -> Put b -> Put c #

(*>) :: Put a -> Put b -> Put b #

(<*) :: Put a -> Put b -> Put a #

Applicative Tree 
Instance details

Defined in Data.Tree

Methods

pure :: a -> Tree a #

(<*>) :: Tree (a -> b) -> Tree a -> Tree b #

liftA2 :: (a -> b -> c) -> Tree a -> Tree b -> Tree c #

(*>) :: Tree a -> Tree b -> Tree b #

(<*) :: Tree a -> Tree b -> Tree a #

Applicative Seq

Since: containers-0.5.4

Instance details

Defined in Data.Sequence.Internal

Methods

pure :: a -> Seq a #

(<*>) :: Seq (a -> b) -> Seq a -> Seq b #

liftA2 :: (a -> b -> c) -> Seq a -> Seq b -> Seq c #

(*>) :: Seq a -> Seq b -> Seq b #

(<*) :: Seq a -> Seq b -> Seq a #

Applicative CryptoFailable 
Instance details

Defined in Crypto.Error.Types

Applicative DList 
Instance details

Defined in Data.DList

Methods

pure :: a -> DList a #

(<*>) :: DList (a -> b) -> DList a -> DList b #

liftA2 :: (a -> b -> c) -> DList a -> DList b -> DList c #

(*>) :: DList a -> DList b -> DList b #

(<*) :: DList a -> DList b -> DList a #

Applicative P 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

pure :: a -> P a #

(<*>) :: P (a -> b) -> P a -> P b #

liftA2 :: (a -> b -> c) -> P a -> P b -> P c #

(*>) :: P a -> P b -> P b #

(<*) :: P a -> P b -> P a #

Applicative ParseResult 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

pure :: a -> ParseResult a #

(<*>) :: ParseResult (a -> b) -> ParseResult a -> ParseResult b #

liftA2 :: (a -> b -> c) -> ParseResult a -> ParseResult b -> ParseResult c #

(*>) :: ParseResult a -> ParseResult b -> ParseResult b #

(<*) :: ParseResult a -> ParseResult b -> ParseResult a #

Applicative Vector 
Instance details

Defined in Data.Vector

Methods

pure :: a -> Vector a #

(<*>) :: Vector (a -> b) -> Vector a -> Vector b #

liftA2 :: (a -> b -> c) -> Vector a -> Vector b -> Vector c #

(*>) :: Vector a -> Vector b -> Vector b #

(<*) :: Vector a -> Vector b -> Vector a #

Applicative SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Methods

pure :: a -> SmallArray a #

(<*>) :: SmallArray (a -> b) -> SmallArray a -> SmallArray b #

liftA2 :: (a -> b -> c) -> SmallArray a -> SmallArray b -> SmallArray c #

(*>) :: SmallArray a -> SmallArray b -> SmallArray b #

(<*) :: SmallArray a -> SmallArray b -> SmallArray a #

Applicative Array 
Instance details

Defined in Data.Primitive.Array

Methods

pure :: a -> Array a #

(<*>) :: Array (a -> b) -> Array a -> Array b #

liftA2 :: (a -> b -> c) -> Array a -> Array b -> Array c #

(*>) :: Array a -> Array b -> Array b #

(<*) :: Array a -> Array b -> Array a #

Applicative Stream 
Instance details

Defined in Codec.Compression.Zlib.Stream

Methods

pure :: a -> Stream a #

(<*>) :: Stream (a -> b) -> Stream a -> Stream b #

liftA2 :: (a -> b -> c) -> Stream a -> Stream b -> Stream c #

(*>) :: Stream a -> Stream b -> Stream b #

(<*) :: Stream a -> Stream b -> Stream a #

Applicative P

Since: base-4.5.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

pure :: a -> P a #

(<*>) :: P (a -> b) -> P a -> P b #

liftA2 :: (a -> b -> c) -> P a -> P b -> P c #

(*>) :: P a -> P b -> P b #

(<*) :: P a -> P b -> P a #

Applicative EP 
Instance details

Defined in Language.Haskell.Exts.ExactPrint

Methods

pure :: a -> EP a #

(<*>) :: EP (a -> b) -> EP a -> EP b #

liftA2 :: (a -> b -> c) -> EP a -> EP b -> EP c #

(*>) :: EP a -> EP b -> EP b #

(<*) :: EP a -> EP b -> EP a #

Applicative (Either e)

Since: base-3.0

Instance details

Defined in Data.Either

Methods

pure :: a -> Either e a #

(<*>) :: Either e (a -> b) -> Either e a -> Either e b #

liftA2 :: (a -> b -> c) -> Either e a -> Either e b -> Either e c #

(*>) :: Either e a -> Either e b -> Either e b #

(<*) :: Either e a -> Either e b -> Either e a #

Applicative (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> U1 a #

(<*>) :: U1 (a -> b) -> U1 a -> U1 b #

liftA2 :: (a -> b -> c) -> U1 a -> U1 b -> U1 c #

(*>) :: U1 a -> U1 b -> U1 b #

(<*) :: U1 a -> U1 b -> U1 a #

Monoid a => Applicative ((,) a)

For tuples, the Monoid constraint on a determines how the first values merge. For example, Strings concatenate:

("hello ", (+15)) <*> ("world!", 2002)
("hello world!",2017)

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a0 -> (a, a0) #

(<*>) :: (a, a0 -> b) -> (a, a0) -> (a, b) #

liftA2 :: (a0 -> b -> c) -> (a, a0) -> (a, b) -> (a, c) #

(*>) :: (a, a0) -> (a, b) -> (a, b) #

(<*) :: (a, a0) -> (a, b) -> (a, a0) #

Monad m => Applicative (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a -> WrappedMonad m a #

(<*>) :: WrappedMonad m (a -> b) -> WrappedMonad m a -> WrappedMonad m b #

liftA2 :: (a -> b -> c) -> WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m c #

(*>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b #

(<*) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m a #

Applicative (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

pure :: a -> Parser i a #

(<*>) :: Parser i (a -> b) -> Parser i a -> Parser i b #

liftA2 :: (a -> b -> c) -> Parser i a -> Parser i b -> Parser i c #

(*>) :: Parser i a -> Parser i b -> Parser i b #

(<*) :: Parser i a -> Parser i b -> Parser i a #

Applicative (Proxy :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Proxy

Methods

pure :: a -> Proxy a #

(<*>) :: Proxy (a -> b) -> Proxy a -> Proxy b #

liftA2 :: (a -> b -> c) -> Proxy a -> Proxy b -> Proxy c #

(*>) :: Proxy a -> Proxy b -> Proxy b #

(<*) :: Proxy a -> Proxy b -> Proxy a #

Monad m => Applicative (ZipSource m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

pure :: a -> ZipSource m a #

(<*>) :: ZipSource m (a -> b) -> ZipSource m a -> ZipSource m b #

liftA2 :: (a -> b -> c) -> ZipSource m a -> ZipSource m b -> ZipSource m c #

(*>) :: ZipSource m a -> ZipSource m b -> ZipSource m b #

(<*) :: ZipSource m a -> ZipSource m b -> ZipSource m a #

Applicative m => Applicative (ResourceT m) 
Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

pure :: a -> ResourceT m a #

(<*>) :: ResourceT m (a -> b) -> ResourceT m a -> ResourceT m b #

liftA2 :: (a -> b -> c) -> ResourceT m a -> ResourceT m b -> ResourceT m c #

(*>) :: ResourceT m a -> ResourceT m b -> ResourceT m b #

(<*) :: ResourceT m a -> ResourceT m b -> ResourceT m a #

Applicative (Lex r) 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Methods

pure :: a -> Lex r a #

(<*>) :: Lex r (a -> b) -> Lex r a -> Lex r b #

liftA2 :: (a -> b -> c) -> Lex r a -> Lex r b -> Lex r c #

(*>) :: Lex r a -> Lex r b -> Lex r b #

(<*) :: Lex r a -> Lex r b -> Lex r a #

Applicative (DocM s) 
Instance details

Defined in Language.Haskell.Exts.Pretty

Methods

pure :: a -> DocM s a #

(<*>) :: DocM s (a -> b) -> DocM s a -> DocM s b #

liftA2 :: (a -> b -> c) -> DocM s a -> DocM s b -> DocM s c #

(*>) :: DocM s a -> DocM s b -> DocM s b #

(<*) :: DocM s a -> DocM s b -> DocM s a #

Applicative (SetM s) 
Instance details

Defined in Data.Graph

Methods

pure :: a -> SetM s a #

(<*>) :: SetM s (a -> b) -> SetM s a -> SetM s b #

liftA2 :: (a -> b -> c) -> SetM s a -> SetM s b -> SetM s c #

(*>) :: SetM s a -> SetM s b -> SetM s b #

(<*) :: SetM s a -> SetM s b -> SetM s a #

Applicative f => Applicative (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> Rec1 f a #

(<*>) :: Rec1 f (a -> b) -> Rec1 f a -> Rec1 f b #

liftA2 :: (a -> b -> c) -> Rec1 f a -> Rec1 f b -> Rec1 f c #

(*>) :: Rec1 f a -> Rec1 f b -> Rec1 f b #

(<*) :: Rec1 f a -> Rec1 f b -> Rec1 f a #

Monoid m => Applicative (Const m :: Type -> Type)

Since: base-2.0.1

Instance details

Defined in Data.Functor.Const

Methods

pure :: a -> Const m a #

(<*>) :: Const m (a -> b) -> Const m a -> Const m b #

liftA2 :: (a -> b -> c) -> Const m a -> Const m b -> Const m c #

(*>) :: Const m a -> Const m b -> Const m b #

(<*) :: Const m a -> Const m b -> Const m a #

Arrow a => Applicative (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a0 -> WrappedArrow a b a0 #

(<*>) :: WrappedArrow a b (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 #

liftA2 :: (a0 -> b0 -> c) -> WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b c #

(*>) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b b0 #

(<*) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 #

Applicative f => Applicative (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

pure :: a -> Ap f a #

(<*>) :: Ap f (a -> b) -> Ap f a -> Ap f b #

liftA2 :: (a -> b -> c) -> Ap f a -> Ap f b -> Ap f c #

(*>) :: Ap f a -> Ap f b -> Ap f b #

(<*) :: Ap f a -> Ap f b -> Ap f a #

Applicative f => Applicative (Alt f)

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Alt f a #

(<*>) :: Alt f (a -> b) -> Alt f a -> Alt f b #

liftA2 :: (a -> b -> c) -> Alt f a -> Alt f b -> Alt f c #

(*>) :: Alt f a -> Alt f b -> Alt f b #

(<*) :: Alt f a -> Alt f b -> Alt f a #

(Functor m, Monad m) => Applicative (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

pure :: a -> ExceptT e m a #

(<*>) :: ExceptT e m (a -> b) -> ExceptT e m a -> ExceptT e m b #

liftA2 :: (a -> b -> c) -> ExceptT e m a -> ExceptT e m b -> ExceptT e m c #

(*>) :: ExceptT e m a -> ExceptT e m b -> ExceptT e m b #

(<*) :: ExceptT e m a -> ExceptT e m b -> ExceptT e m a #

Monad m => Applicative (ZipSink i m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

pure :: a -> ZipSink i m a #

(<*>) :: ZipSink i m (a -> b) -> ZipSink i m a -> ZipSink i m b #

liftA2 :: (a -> b -> c) -> ZipSink i m a -> ZipSink i m b -> ZipSink i m c #

(*>) :: ZipSink i m a -> ZipSink i m b -> ZipSink i m b #

(<*) :: ZipSink i m a -> ZipSink i m b -> ZipSink i m a #

(Applicative f, Monad f) => Applicative (WhenMissing f x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)).

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

pure :: a -> WhenMissing f x a #

(<*>) :: WhenMissing f x (a -> b) -> WhenMissing f x a -> WhenMissing f x b #

liftA2 :: (a -> b -> c) -> WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x c #

(*>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b #

(<*) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x a #

(Functor m, Monad m) => Applicative (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

pure :: a -> ErrorT e m a #

(<*>) :: ErrorT e m (a -> b) -> ErrorT e m a -> ErrorT e m b #

liftA2 :: (a -> b -> c) -> ErrorT e m a -> ErrorT e m b -> ErrorT e m c #

(*>) :: ErrorT e m a -> ErrorT e m b -> ErrorT e m b #

(<*) :: ErrorT e m a -> ErrorT e m b -> ErrorT e m a #

Applicative (Tagged s) 
Instance details

Defined in Data.Tagged

Methods

pure :: a -> Tagged s a #

(<*>) :: Tagged s (a -> b) -> Tagged s a -> Tagged s b #

liftA2 :: (a -> b -> c) -> Tagged s a -> Tagged s b -> Tagged s c #

(*>) :: Tagged s a -> Tagged s b -> Tagged s b #

(<*) :: Tagged s a -> Tagged s b -> Tagged s a #

Applicative ((->) a :: Type -> Type)

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a0 -> a -> a0 #

(<*>) :: (a -> (a0 -> b)) -> (a -> a0) -> a -> b #

liftA2 :: (a0 -> b -> c) -> (a -> a0) -> (a -> b) -> a -> c #

(*>) :: (a -> a0) -> (a -> b) -> a -> b #

(<*) :: (a -> a0) -> (a -> b) -> a -> a0 #

Monoid c => Applicative (K1 i c :: Type -> Type)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> K1 i c a #

(<*>) :: K1 i c (a -> b) -> K1 i c a -> K1 i c b #

liftA2 :: (a -> b -> c0) -> K1 i c a -> K1 i c b -> K1 i c c0 #

(*>) :: K1 i c a -> K1 i c b -> K1 i c b #

(<*) :: K1 i c a -> K1 i c b -> K1 i c a #

(Applicative f, Applicative g) => Applicative (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> (f :*: g) a #

(<*>) :: (f :*: g) (a -> b) -> (f :*: g) a -> (f :*: g) b #

liftA2 :: (a -> b -> c) -> (f :*: g) a -> (f :*: g) b -> (f :*: g) c #

(*>) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) b #

(<*) :: (f :*: g) a -> (f :*: g) b -> (f :*: g) a #

(Applicative f, Applicative g) => Applicative (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

pure :: a -> Product f g a #

(<*>) :: Product f g (a -> b) -> Product f g a -> Product f g b #

liftA2 :: (a -> b -> c) -> Product f g a -> Product f g b -> Product f g c #

(*>) :: Product f g a -> Product f g b -> Product f g b #

(<*) :: Product f g a -> Product f g b -> Product f g a #

Applicative (ConduitT i o m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

pure :: a -> ConduitT i o m a #

(<*>) :: ConduitT i o m (a -> b) -> ConduitT i o m a -> ConduitT i o m b #

liftA2 :: (a -> b -> c) -> ConduitT i o m a -> ConduitT i o m b -> ConduitT i o m c #

(*>) :: ConduitT i o m a -> ConduitT i o m b -> ConduitT i o m b #

(<*) :: ConduitT i o m a -> ConduitT i o m b -> ConduitT i o m a #

Monad m => Applicative (ZipConduit i o m) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

pure :: a -> ZipConduit i o m a #

(<*>) :: ZipConduit i o m (a -> b) -> ZipConduit i o m a -> ZipConduit i o m b #

liftA2 :: (a -> b -> c) -> ZipConduit i o m a -> ZipConduit i o m b -> ZipConduit i o m c #

(*>) :: ZipConduit i o m a -> ZipConduit i o m b -> ZipConduit i o m b #

(<*) :: ZipConduit i o m a -> ZipConduit i o m b -> ZipConduit i o m a #

(Monad f, Applicative f) => Applicative (WhenMatched f x y)

Equivalent to ReaderT Key (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

pure :: a -> WhenMatched f x y a #

(<*>) :: WhenMatched f x y (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b #

liftA2 :: (a -> b -> c) -> WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y c #

(*>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b #

(<*) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y a #

(Applicative f, Monad f) => Applicative (WhenMissing f k x)

Equivalent to ReaderT k (ReaderT x (MaybeT f)) .

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

pure :: a -> WhenMissing f k x a #

(<*>) :: WhenMissing f k x (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b #

liftA2 :: (a -> b -> c) -> WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x c #

(*>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b #

(<*) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x a #

Stream s => Applicative (ParsecT e s m)

pure returns a parser that succeeds without consuming input.

Instance details

Defined in Text.Megaparsec.Internal

Methods

pure :: a -> ParsecT e s m a #

(<*>) :: ParsecT e s m (a -> b) -> ParsecT e s m a -> ParsecT e s m b #

liftA2 :: (a -> b -> c) -> ParsecT e s m a -> ParsecT e s m b -> ParsecT e s m c #

(*>) :: ParsecT e s m a -> ParsecT e s m b -> ParsecT e s m b #

(<*) :: ParsecT e s m a -> ParsecT e s m b -> ParsecT e s m a #

Applicative f => Applicative (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> M1 i c f a #

(<*>) :: M1 i c f (a -> b) -> M1 i c f a -> M1 i c f b #

liftA2 :: (a -> b -> c0) -> M1 i c f a -> M1 i c f b -> M1 i c f c0 #

(*>) :: M1 i c f a -> M1 i c f b -> M1 i c f b #

(<*) :: M1 i c f a -> M1 i c f b -> M1 i c f a #

(Applicative f, Applicative g) => Applicative (f :.: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

pure :: a -> (f :.: g) a #

(<*>) :: (f :.: g) (a -> b) -> (f :.: g) a -> (f :.: g) b #

liftA2 :: (a -> b -> c) -> (f :.: g) a -> (f :.: g) b -> (f :.: g) c #

(*>) :: (f :.: g) a -> (f :.: g) b -> (f :.: g) b #

(<*) :: (f :.: g) a -> (f :.: g) b -> (f :.: g) a #

(Applicative f, Applicative g) => Applicative (Compose f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

pure :: a -> Compose f g a #

(<*>) :: Compose f g (a -> b) -> Compose f g a -> Compose f g b #

liftA2 :: (a -> b -> c) -> Compose f g a -> Compose f g b -> Compose f g c #

(*>) :: Compose f g a -> Compose f g b -> Compose f g b #

(<*) :: Compose f g a -> Compose f g b -> Compose f g a #

(Monad f, Applicative f) => Applicative (WhenMatched f k x y)

Equivalent to ReaderT k (ReaderT x (ReaderT y (MaybeT f)))

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

pure :: a -> WhenMatched f k x y a #

(<*>) :: WhenMatched f k x y (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b #

liftA2 :: (a -> b -> c) -> WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y c #

(*>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b #

(<*) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y a #

Monad state => Applicative (Builder collection mutCollection step state err) 
Instance details

Defined in Basement.MutableBuilder

Methods

pure :: a -> Builder collection mutCollection step state err a #

(<*>) :: Builder collection mutCollection step state err (a -> b) -> Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b #

liftA2 :: (a -> b -> c) -> Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b -> Builder collection mutCollection step state err c #

(*>) :: Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b -> Builder collection mutCollection step state err b #

(<*) :: Builder collection mutCollection step state err a -> Builder collection mutCollection step state err b -> Builder collection mutCollection step state err a #

Monad m => Applicative (Pipe l i o u m) 
Instance details

Defined in Data.Conduit.Internal.Pipe

Methods

pure :: a -> Pipe l i o u m a #

(<*>) :: Pipe l i o u m (a -> b) -> Pipe l i o u m a -> Pipe l i o u m b #

liftA2 :: (a -> b -> c) -> Pipe l i o u m a -> Pipe l i o u m b -> Pipe l i o u m c #

(*>) :: Pipe l i o u m a -> Pipe l i o u m b -> Pipe l i o u m b #

(<*) :: Pipe l i o u m a -> Pipe l i o u m b -> Pipe l i o u m a #

class Foldable (t :: Type -> Type) where #

Data structures that can be folded.

For example, given a data type

data Tree a = Empty | Leaf a | Node (Tree a) a (Tree a)

a suitable instance would be

instance Foldable Tree where
   foldMap f Empty = mempty
   foldMap f (Leaf x) = f x
   foldMap f (Node l k r) = foldMap f l `mappend` f k `mappend` foldMap f r

This is suitable even for abstract types, as the monoid is assumed to satisfy the monoid laws. Alternatively, one could define foldr:

instance Foldable Tree where
   foldr f z Empty = z
   foldr f z (Leaf x) = f x z
   foldr f z (Node l k r) = foldr f (f k (foldr f z r)) l

Foldable instances are expected to satisfy the following laws:

foldr f z t = appEndo (foldMap (Endo . f) t ) z
foldl f z t = appEndo (getDual (foldMap (Dual . Endo . flip f) t)) z
fold = foldMap id
length = getSum . foldMap (Sum . const  1)

sum, product, maximum, and minimum should all be essentially equivalent to foldMap forms, such as

sum = getSum . foldMap Sum

but may be less defined.

If the type is also a Functor instance, it should satisfy

foldMap f = fold . fmap f

which implies that

foldMap f . fmap g = foldMap (f . g)

Minimal complete definition

foldMap | foldr

Methods

fold :: Monoid m => t m -> m #

Combine the elements of a structure using a monoid.

foldMap :: Monoid m => (a -> m) -> t a -> m #

Map each element of the structure to a monoid, and combine the results.

foldr :: (a -> b -> b) -> b -> t a -> b #

Right-associative fold of a structure.

In the case of lists, foldr, when applied to a binary operator, a starting value (typically the right-identity of the operator), and a list, reduces the list using the binary operator, from right to left:

foldr f z [x1, x2, ..., xn] == x1 `f` (x2 `f` ... (xn `f` z)...)

Note that, since the head of the resulting expression is produced by an application of the operator to the first element of the list, foldr can produce a terminating expression from an infinite list.

For a general Foldable structure this should be semantically identical to,

foldr f z = foldr f z . toList

foldr' :: (a -> b -> b) -> b -> t a -> b #

Right-associative fold of a structure, but with strict application of the operator.

foldl :: (b -> a -> b) -> b -> t a -> b #

Left-associative fold of a structure.

In the case of lists, foldl, when applied to a binary operator, a starting value (typically the left-identity of the operator), and a list, reduces the list using the binary operator, from left to right:

foldl f z [x1, x2, ..., xn] == (...((z `f` x1) `f` x2) `f`...) `f` xn

Note that to produce the outermost application of the operator the entire input list must be traversed. This means that foldl' will diverge if given an infinite list.

Also note that if you want an efficient left-fold, you probably want to use foldl' instead of foldl. The reason for this is that latter does not force the "inner" results (e.g. z f x1 in the above example) before applying them to the operator (e.g. to (f x2)). This results in a thunk chain O(n) elements long, which then must be evaluated from the outside-in.

For a general Foldable structure this should be semantically identical to,

foldl f z = foldl f z . toList

foldl' :: (b -> a -> b) -> b -> t a -> b #

Left-associative fold of a structure but with strict application of the operator.

This ensures that each step of the fold is forced to weak head normal form before being applied, avoiding the collection of thunks that would otherwise occur. This is often what you want to strictly reduce a finite list to a single, monolithic result (e.g. length).

For a general Foldable structure this should be semantically identical to,

foldl f z = foldl' f z . toList

foldr1 :: (a -> a -> a) -> t a -> a #

A variant of foldr that has no base case, and thus may only be applied to non-empty structures.

foldr1 f = foldr1 f . toList

foldl1 :: (a -> a -> a) -> t a -> a #

A variant of foldl that has no base case, and thus may only be applied to non-empty structures.

foldl1 f = foldl1 f . toList

toList :: t a -> [a] #

List of elements of a structure, from left to right.

null :: t a -> Bool #

Test whether the structure is empty. The default implementation is optimized for structures that are similar to cons-lists, because there is no general way to do better.

length :: t a -> Int #

Returns the size/length of a finite structure as an Int. The default implementation is optimized for structures that are similar to cons-lists, because there is no general way to do better.

elem :: Eq a => a -> t a -> Bool infix 4 #

Does the element occur in the structure?

maximum :: Ord a => t a -> a #

The largest element of a non-empty structure.

minimum :: Ord a => t a -> a #

The least element of a non-empty structure.

sum :: Num a => t a -> a #

The sum function computes the sum of the numbers of a structure.

product :: Num a => t a -> a #

The product function computes the product of the numbers of a structure.

Instances
Foldable []

Since: base-2.1

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => [m] -> m #

foldMap :: Monoid m => (a -> m) -> [a] -> m #

foldr :: (a -> b -> b) -> b -> [a] -> b #

foldr' :: (a -> b -> b) -> b -> [a] -> b #

foldl :: (b -> a -> b) -> b -> [a] -> b #

foldl' :: (b -> a -> b) -> b -> [a] -> b #

foldr1 :: (a -> a -> a) -> [a] -> a #

foldl1 :: (a -> a -> a) -> [a] -> a #

toList :: [a] -> [a] #

null :: [a] -> Bool #

length :: [a] -> Int #

elem :: Eq a => a -> [a] -> Bool #

maximum :: Ord a => [a] -> a #

minimum :: Ord a => [a] -> a #

sum :: Num a => [a] -> a #

product :: Num a => [a] -> a #

Foldable Maybe

Since: base-2.1

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Maybe m -> m #

foldMap :: Monoid m => (a -> m) -> Maybe a -> m #

foldr :: (a -> b -> b) -> b -> Maybe a -> b #

foldr' :: (a -> b -> b) -> b -> Maybe a -> b #

foldl :: (b -> a -> b) -> b -> Maybe a -> b #

foldl' :: (b -> a -> b) -> b -> Maybe a -> b #

foldr1 :: (a -> a -> a) -> Maybe a -> a #

foldl1 :: (a -> a -> a) -> Maybe a -> a #

toList :: Maybe a -> [a] #

null :: Maybe a -> Bool #

length :: Maybe a -> Int #

elem :: Eq a => a -> Maybe a -> Bool #

maximum :: Ord a => Maybe a -> a #

minimum :: Ord a => Maybe a -> a #

sum :: Num a => Maybe a -> a #

product :: Num a => Maybe a -> a #

Foldable Par1

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Par1 m -> m #

foldMap :: Monoid m => (a -> m) -> Par1 a -> m #

foldr :: (a -> b -> b) -> b -> Par1 a -> b #

foldr' :: (a -> b -> b) -> b -> Par1 a -> b #

foldl :: (b -> a -> b) -> b -> Par1 a -> b #

foldl' :: (b -> a -> b) -> b -> Par1 a -> b #

foldr1 :: (a -> a -> a) -> Par1 a -> a #

foldl1 :: (a -> a -> a) -> Par1 a -> a #

toList :: Par1 a -> [a] #

null :: Par1 a -> Bool #

length :: Par1 a -> Int #

elem :: Eq a => a -> Par1 a -> Bool #

maximum :: Ord a => Par1 a -> a #

minimum :: Ord a => Par1 a -> a #

sum :: Num a => Par1 a -> a #

product :: Num a => Par1 a -> a #

Foldable Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Last m -> m #

foldMap :: Monoid m => (a -> m) -> Last a -> m #

foldr :: (a -> b -> b) -> b -> Last a -> b #

foldr' :: (a -> b -> b) -> b -> Last a -> b #

foldl :: (b -> a -> b) -> b -> Last a -> b #

foldl' :: (b -> a -> b) -> b -> Last a -> b #

foldr1 :: (a -> a -> a) -> Last a -> a #

foldl1 :: (a -> a -> a) -> Last a -> a #

toList :: Last a -> [a] #

null :: Last a -> Bool #

length :: Last a -> Int #

elem :: Eq a => a -> Last a -> Bool #

maximum :: Ord a => Last a -> a #

minimum :: Ord a => Last a -> a #

sum :: Num a => Last a -> a #

product :: Num a => Last a -> a #

Foldable VersionRangeF 
Instance details

Defined in Distribution.Types.VersionRange

Methods

fold :: Monoid m => VersionRangeF m -> m #

foldMap :: Monoid m => (a -> m) -> VersionRangeF a -> m #

foldr :: (a -> b -> b) -> b -> VersionRangeF a -> b #

foldr' :: (a -> b -> b) -> b -> VersionRangeF a -> b #

foldl :: (b -> a -> b) -> b -> VersionRangeF a -> b #

foldl' :: (b -> a -> b) -> b -> VersionRangeF a -> b #

foldr1 :: (a -> a -> a) -> VersionRangeF a -> a #

foldl1 :: (a -> a -> a) -> VersionRangeF a -> a #

toList :: VersionRangeF a -> [a] #

null :: VersionRangeF a -> Bool #

length :: VersionRangeF a -> Int #

elem :: Eq a => a -> VersionRangeF a -> Bool #

maximum :: Ord a => VersionRangeF a -> a #

minimum :: Ord a => VersionRangeF a -> a #

sum :: Num a => VersionRangeF a -> a #

product :: Num a => VersionRangeF a -> a #

Foldable SCC

Since: containers-0.5.9

Instance details

Defined in Data.Graph

Methods

fold :: Monoid m => SCC m -> m #

foldMap :: Monoid m => (a -> m) -> SCC a -> m #

foldr :: (a -> b -> b) -> b -> SCC a -> b #

foldr' :: (a -> b -> b) -> b -> SCC a -> b #

foldl :: (b -> a -> b) -> b -> SCC a -> b #

foldl' :: (b -> a -> b) -> b -> SCC a -> b #

foldr1 :: (a -> a -> a) -> SCC a -> a #

foldl1 :: (a -> a -> a) -> SCC a -> a #

toList :: SCC a -> [a] #

null :: SCC a -> Bool #

length :: SCC a -> Int #

elem :: Eq a => a -> SCC a -> Bool #

maximum :: Ord a => SCC a -> a #

minimum :: Ord a => SCC a -> a #

sum :: Num a => SCC a -> a #

product :: Num a => SCC a -> a #

Foldable Set 
Instance details

Defined in Data.Set.Internal

Methods

fold :: Monoid m => Set m -> m #

foldMap :: Monoid m => (a -> m) -> Set a -> m #

foldr :: (a -> b -> b) -> b -> Set a -> b #

foldr' :: (a -> b -> b) -> b -> Set a -> b #

foldl :: (b -> a -> b) -> b -> Set a -> b #

foldl' :: (b -> a -> b) -> b -> Set a -> b #

foldr1 :: (a -> a -> a) -> Set a -> a #

foldl1 :: (a -> a -> a) -> Set a -> a #

toList :: Set a -> [a] #

null :: Set a -> Bool #

length :: Set a -> Int #

elem :: Eq a => a -> Set a -> Bool #

maximum :: Ord a => Set a -> a #

minimum :: Ord a => Set a -> a #

sum :: Num a => Set a -> a #

product :: Num a => Set a -> a #

Foldable Identity

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Identity

Methods

fold :: Monoid m => Identity m -> m #

foldMap :: Monoid m => (a -> m) -> Identity a -> m #

foldr :: (a -> b -> b) -> b -> Identity a -> b #

foldr' :: (a -> b -> b) -> b -> Identity a -> b #

foldl :: (b -> a -> b) -> b -> Identity a -> b #

foldl' :: (b -> a -> b) -> b -> Identity a -> b #

foldr1 :: (a -> a -> a) -> Identity a -> a #

foldl1 :: (a -> a -> a) -> Identity a -> a #

toList :: Identity a -> [a] #

null :: Identity a -> Bool #

length :: Identity a -> Int #

elem :: Eq a => a -> Identity a -> Bool #

maximum :: Ord a => Identity a -> a #

minimum :: Ord a => Identity a -> a #

sum :: Num a => Identity a -> a #

product :: Num a => Identity a -> a #

Foldable ZipList

Since: base-4.9.0.0

Instance details

Defined in Control.Applicative

Methods

fold :: Monoid m => ZipList m -> m #

foldMap :: Monoid m => (a -> m) -> ZipList a -> m #

foldr :: (a -> b -> b) -> b -> ZipList a -> b #

foldr' :: (a -> b -> b) -> b -> ZipList a -> b #

foldl :: (b -> a -> b) -> b -> ZipList a -> b #

foldl' :: (b -> a -> b) -> b -> ZipList a -> b #

foldr1 :: (a -> a -> a) -> ZipList a -> a #

foldl1 :: (a -> a -> a) -> ZipList a -> a #

toList :: ZipList a -> [a] #

null :: ZipList a -> Bool #

length :: ZipList a -> Int #

elem :: Eq a => a -> ZipList a -> Bool #

maximum :: Ord a => ZipList a -> a #

minimum :: Ord a => ZipList a -> a #

sum :: Num a => ZipList a -> a #

product :: Num a => ZipList a -> a #

Foldable IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fold :: Monoid m => IResult m -> m #

foldMap :: Monoid m => (a -> m) -> IResult a -> m #

foldr :: (a -> b -> b) -> b -> IResult a -> b #

foldr' :: (a -> b -> b) -> b -> IResult a -> b #

foldl :: (b -> a -> b) -> b -> IResult a -> b #

foldl' :: (b -> a -> b) -> b -> IResult a -> b #

foldr1 :: (a -> a -> a) -> IResult a -> a #

foldl1 :: (a -> a -> a) -> IResult a -> a #

toList :: IResult a -> [a] #

null :: IResult a -> Bool #

length :: IResult a -> Int #

elem :: Eq a => a -> IResult a -> Bool #

maximum :: Ord a => IResult a -> a #

minimum :: Ord a => IResult a -> a #

sum :: Num a => IResult a -> a #

product :: Num a => IResult a -> a #

Foldable Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

fold :: Monoid m => Result m -> m #

foldMap :: Monoid m => (a -> m) -> Result a -> m #

foldr :: (a -> b -> b) -> b -> Result a -> b #

foldr' :: (a -> b -> b) -> b -> Result a -> b #

foldl :: (b -> a -> b) -> b -> Result a -> b #

foldl' :: (b -> a -> b) -> b -> Result a -> b #

foldr1 :: (a -> a -> a) -> Result a -> a #

foldl1 :: (a -> a -> a) -> Result a -> a #

toList :: Result a -> [a] #

null :: Result a -> Bool #

length :: Result a -> Int #

elem :: Eq a => a -> Result a -> Bool #

maximum :: Ord a => Result a -> a #

minimum :: Ord a => Result a -> a #

sum :: Num a => Result a -> a #

product :: Num a => Result a -> a #

Foldable Complex

Since: base-4.9.0.0

Instance details

Defined in Data.Complex

Methods

fold :: Monoid m => Complex m -> m #

foldMap :: Monoid m => (a -> m) -> Complex a -> m #

foldr :: (a -> b -> b) -> b -> Complex a -> b #

foldr' :: (a -> b -> b) -> b -> Complex a -> b #

foldl :: (b -> a -> b) -> b -> Complex a -> b #

foldl' :: (b -> a -> b) -> b -> Complex a -> b #

foldr1 :: (a -> a -> a) -> Complex a -> a #

foldl1 :: (a -> a -> a) -> Complex a -> a #

toList :: Complex a -> [a] #

null :: Complex a -> Bool #

length :: Complex a -> Int #

elem :: Eq a => a -> Complex a -> Bool #

maximum :: Ord a => Complex a -> a #

minimum :: Ord a => Complex a -> a #

sum :: Num a => Complex a -> a #

product :: Num a => Complex a -> a #

Foldable Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Min m -> m #

foldMap :: Monoid m => (a -> m) -> Min a -> m #

foldr :: (a -> b -> b) -> b -> Min a -> b #

foldr' :: (a -> b -> b) -> b -> Min a -> b #

foldl :: (b -> a -> b) -> b -> Min a -> b #

foldl' :: (b -> a -> b) -> b -> Min a -> b #

foldr1 :: (a -> a -> a) -> Min a -> a #

foldl1 :: (a -> a -> a) -> Min a -> a #

toList :: Min a -> [a] #

null :: Min a -> Bool #

length :: Min a -> Int #

elem :: Eq a => a -> Min a -> Bool #

maximum :: Ord a => Min a -> a #

minimum :: Ord a => Min a -> a #

sum :: Num a => Min a -> a #

product :: Num a => Min a -> a #

Foldable Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Max m -> m #

foldMap :: Monoid m => (a -> m) -> Max a -> m #

foldr :: (a -> b -> b) -> b -> Max a -> b #

foldr' :: (a -> b -> b) -> b -> Max a -> b #

foldl :: (b -> a -> b) -> b -> Max a -> b #

foldl' :: (b -> a -> b) -> b -> Max a -> b #

foldr1 :: (a -> a -> a) -> Max a -> a #

foldl1 :: (a -> a -> a) -> Max a -> a #

toList :: Max a -> [a] #

null :: Max a -> Bool #

length :: Max a -> Int #

elem :: Eq a => a -> Max a -> Bool #

maximum :: Ord a => Max a -> a #

minimum :: Ord a => Max a -> a #

sum :: Num a => Max a -> a #

product :: Num a => Max a -> a #

Foldable First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => First m -> m #

foldMap :: Monoid m => (a -> m) -> First a -> m #

foldr :: (a -> b -> b) -> b -> First a -> b #

foldr' :: (a -> b -> b) -> b -> First a -> b #

foldl :: (b -> a -> b) -> b -> First a -> b #

foldl' :: (b -> a -> b) -> b -> First a -> b #

foldr1 :: (a -> a -> a) -> First a -> a #

foldl1 :: (a -> a -> a) -> First a -> a #

toList :: First a -> [a] #

null :: First a -> Bool #

length :: First a -> Int #

elem :: Eq a => a -> First a -> Bool #

maximum :: Ord a => First a -> a #

minimum :: Ord a => First a -> a #

sum :: Num a => First a -> a #

product :: Num a => First a -> a #

Foldable Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Option m -> m #

foldMap :: Monoid m => (a -> m) -> Option a -> m #

foldr :: (a -> b -> b) -> b -> Option a -> b #

foldr' :: (a -> b -> b) -> b -> Option a -> b #

foldl :: (b -> a -> b) -> b -> Option a -> b #

foldl' :: (b -> a -> b) -> b -> Option a -> b #

foldr1 :: (a -> a -> a) -> Option a -> a #

foldl1 :: (a -> a -> a) -> Option a -> a #

toList :: Option a -> [a] #

null :: Option a -> Bool #

length :: Option a -> Int #

elem :: Eq a => a -> Option a -> Bool #

maximum :: Ord a => Option a -> a #

minimum :: Ord a => Option a -> a #

sum :: Num a => Option a -> a #

product :: Num a => Option a -> a #

Foldable First

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => First m -> m #

foldMap :: Monoid m => (a -> m) -> First a -> m #

foldr :: (a -> b -> b) -> b -> First a -> b #

foldr' :: (a -> b -> b) -> b -> First a -> b #

foldl :: (b -> a -> b) -> b -> First a -> b #

foldl' :: (b -> a -> b) -> b -> First a -> b #

foldr1 :: (a -> a -> a) -> First a -> a #

foldl1 :: (a -> a -> a) -> First a -> a #

toList :: First a -> [a] #

null :: First a -> Bool #

length :: First a -> Int #

elem :: Eq a => a -> First a -> Bool #

maximum :: Ord a => First a -> a #

minimum :: Ord a => First a -> a #

sum :: Num a => First a -> a #

product :: Num a => First a -> a #

Foldable Last

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Last m -> m #

foldMap :: Monoid m => (a -> m) -> Last a -> m #

foldr :: (a -> b -> b) -> b -> Last a -> b #

foldr' :: (a -> b -> b) -> b -> Last a -> b #

foldl :: (b -> a -> b) -> b -> Last a -> b #

foldl' :: (b -> a -> b) -> b -> Last a -> b #

foldr1 :: (a -> a -> a) -> Last a -> a #

foldl1 :: (a -> a -> a) -> Last a -> a #

toList :: Last a -> [a] #

null :: Last a -> Bool #

length :: Last a -> Int #

elem :: Eq a => a -> Last a -> Bool #

maximum :: Ord a => Last a -> a #

minimum :: Ord a => Last a -> a #

sum :: Num a => Last a -> a #

product :: Num a => Last a -> a #

Foldable Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Dual m -> m #

foldMap :: Monoid m => (a -> m) -> Dual a -> m #

foldr :: (a -> b -> b) -> b -> Dual a -> b #

foldr' :: (a -> b -> b) -> b -> Dual a -> b #

foldl :: (b -> a -> b) -> b -> Dual a -> b #

foldl' :: (b -> a -> b) -> b -> Dual a -> b #

foldr1 :: (a -> a -> a) -> Dual a -> a #

foldl1 :: (a -> a -> a) -> Dual a -> a #

toList :: Dual a -> [a] #

null :: Dual a -> Bool #

length :: Dual a -> Int #

elem :: Eq a => a -> Dual a -> Bool #

maximum :: Ord a => Dual a -> a #

minimum :: Ord a => Dual a -> a #

sum :: Num a => Dual a -> a #

product :: Num a => Dual a -> a #

Foldable Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Sum m -> m #

foldMap :: Monoid m => (a -> m) -> Sum a -> m #

foldr :: (a -> b -> b) -> b -> Sum a -> b #

foldr' :: (a -> b -> b) -> b -> Sum a -> b #

foldl :: (b -> a -> b) -> b -> Sum a -> b #

foldl' :: (b -> a -> b) -> b -> Sum a -> b #

foldr1 :: (a -> a -> a) -> Sum a -> a #

foldl1 :: (a -> a -> a) -> Sum a -> a #

toList :: Sum a -> [a] #

null :: Sum a -> Bool #

length :: Sum a -> Int #

elem :: Eq a => a -> Sum a -> Bool #

maximum :: Ord a => Sum a -> a #

minimum :: Ord a => Sum a -> a #

sum :: Num a => Sum a -> a #

product :: Num a => Sum a -> a #

Foldable Product

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Product m -> m #

foldMap :: Monoid m => (a -> m) -> Product a -> m #

foldr :: (a -> b -> b) -> b -> Product a -> b #

foldr' :: (a -> b -> b) -> b -> Product a -> b #

foldl :: (b -> a -> b) -> b -> Product a -> b #

foldl' :: (b -> a -> b) -> b -> Product a -> b #

foldr1 :: (a -> a -> a) -> Product a -> a #

foldl1 :: (a -> a -> a) -> Product a -> a #

toList :: Product a -> [a] #

null :: Product a -> Bool #

length :: Product a -> Int #

elem :: Eq a => a -> Product a -> Bool #

maximum :: Ord a => Product a -> a #

minimum :: Ord a => Product a -> a #

sum :: Num a => Product a -> a #

product :: Num a => Product a -> a #

Foldable Down

Since: base-4.12.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Down m -> m #

foldMap :: Monoid m => (a -> m) -> Down a -> m #

foldr :: (a -> b -> b) -> b -> Down a -> b #

foldr' :: (a -> b -> b) -> b -> Down a -> b #

foldl :: (b -> a -> b) -> b -> Down a -> b #

foldl' :: (b -> a -> b) -> b -> Down a -> b #

foldr1 :: (a -> a -> a) -> Down a -> a #

foldl1 :: (a -> a -> a) -> Down a -> a #

toList :: Down a -> [a] #

null :: Down a -> Bool #

length :: Down a -> Int #

elem :: Eq a => a -> Down a -> Bool #

maximum :: Ord a => Down a -> a #

minimum :: Ord a => Down a -> a #

sum :: Num a => Down a -> a #

product :: Num a => Down a -> a #

Foldable NonEmpty

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => NonEmpty m -> m #

foldMap :: Monoid m => (a -> m) -> NonEmpty a -> m #

foldr :: (a -> b -> b) -> b -> NonEmpty a -> b #

foldr' :: (a -> b -> b) -> b -> NonEmpty a -> b #

foldl :: (b -> a -> b) -> b -> NonEmpty a -> b #

foldl' :: (b -> a -> b) -> b -> NonEmpty a -> b #

foldr1 :: (a -> a -> a) -> NonEmpty a -> a #

foldl1 :: (a -> a -> a) -> NonEmpty a -> a #

toList :: NonEmpty a -> [a] #

null :: NonEmpty a -> Bool #

length :: NonEmpty a -> Int #

elem :: Eq a => a -> NonEmpty a -> Bool #

maximum :: Ord a => NonEmpty a -> a #

minimum :: Ord a => NonEmpty a -> a #

sum :: Num a => NonEmpty a -> a #

product :: Num a => NonEmpty a -> a #

Foldable IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

fold :: Monoid m => IntMap m -> m #

foldMap :: Monoid m => (a -> m) -> IntMap a -> m #

foldr :: (a -> b -> b) -> b -> IntMap a -> b #

foldr' :: (a -> b -> b) -> b -> IntMap a -> b #

foldl :: (b -> a -> b) -> b -> IntMap a -> b #

foldl' :: (b -> a -> b) -> b -> IntMap a -> b #

foldr1 :: (a -> a -> a) -> IntMap a -> a #

foldl1 :: (a -> a -> a) -> IntMap a -> a #

toList :: IntMap a -> [a] #

null :: IntMap a -> Bool #

length :: IntMap a -> Int #

elem :: Eq a => a -> IntMap a -> Bool #

maximum :: Ord a => IntMap a -> a #

minimum :: Ord a => IntMap a -> a #

sum :: Num a => IntMap a -> a #

product :: Num a => IntMap a -> a #

Foldable Tree 
Instance details

Defined in Data.Tree

Methods

fold :: Monoid m => Tree m -> m #

foldMap :: Monoid m => (a -> m) -> Tree a -> m #

foldr :: (a -> b -> b) -> b -> Tree a -> b #

foldr' :: (a -> b -> b) -> b -> Tree a -> b #

foldl :: (b -> a -> b) -> b -> Tree a -> b #

foldl' :: (b -> a -> b) -> b -> Tree a -> b #

foldr1 :: (a -> a -> a) -> Tree a -> a #

foldl1 :: (a -> a -> a) -> Tree a -> a #

toList :: Tree a -> [a] #

null :: Tree a -> Bool #

length :: Tree a -> Int #

elem :: Eq a => a -> Tree a -> Bool #

maximum :: Ord a => Tree a -> a #

minimum :: Ord a => Tree a -> a #

sum :: Num a => Tree a -> a #

product :: Num a => Tree a -> a #

Foldable Seq 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => Seq m -> m #

foldMap :: Monoid m => (a -> m) -> Seq a -> m #

foldr :: (a -> b -> b) -> b -> Seq a -> b #

foldr' :: (a -> b -> b) -> b -> Seq a -> b #

foldl :: (b -> a -> b) -> b -> Seq a -> b #

foldl' :: (b -> a -> b) -> b -> Seq a -> b #

foldr1 :: (a -> a -> a) -> Seq a -> a #

foldl1 :: (a -> a -> a) -> Seq a -> a #

toList :: Seq a -> [a] #

null :: Seq a -> Bool #

length :: Seq a -> Int #

elem :: Eq a => a -> Seq a -> Bool #

maximum :: Ord a => Seq a -> a #

minimum :: Ord a => Seq a -> a #

sum :: Num a => Seq a -> a #

product :: Num a => Seq a -> a #

Foldable FingerTree 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => FingerTree m -> m #

foldMap :: Monoid m => (a -> m) -> FingerTree a -> m #

foldr :: (a -> b -> b) -> b -> FingerTree a -> b #

foldr' :: (a -> b -> b) -> b -> FingerTree a -> b #

foldl :: (b -> a -> b) -> b -> FingerTree a -> b #

foldl' :: (b -> a -> b) -> b -> FingerTree a -> b #

foldr1 :: (a -> a -> a) -> FingerTree a -> a #

foldl1 :: (a -> a -> a) -> FingerTree a -> a #

toList :: FingerTree a -> [a] #

null :: FingerTree a -> Bool #

length :: FingerTree a -> Int #

elem :: Eq a => a -> FingerTree a -> Bool #

maximum :: Ord a => FingerTree a -> a #

minimum :: Ord a => FingerTree a -> a #

sum :: Num a => FingerTree a -> a #

product :: Num a => FingerTree a -> a #

Foldable Digit 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => Digit m -> m #

foldMap :: Monoid m => (a -> m) -> Digit a -> m #

foldr :: (a -> b -> b) -> b -> Digit a -> b #

foldr' :: (a -> b -> b) -> b -> Digit a -> b #

foldl :: (b -> a -> b) -> b -> Digit a -> b #

foldl' :: (b -> a -> b) -> b -> Digit a -> b #

foldr1 :: (a -> a -> a) -> Digit a -> a #

foldl1 :: (a -> a -> a) -> Digit a -> a #

toList :: Digit a -> [a] #

null :: Digit a -> Bool #

length :: Digit a -> Int #

elem :: Eq a => a -> Digit a -> Bool #

maximum :: Ord a => Digit a -> a #

minimum :: Ord a => Digit a -> a #

sum :: Num a => Digit a -> a #

product :: Num a => Digit a -> a #

Foldable Node 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => Node m -> m #

foldMap :: Monoid m => (a -> m) -> Node a -> m #

foldr :: (a -> b -> b) -> b -> Node a -> b #

foldr' :: (a -> b -> b) -> b -> Node a -> b #

foldl :: (b -> a -> b) -> b -> Node a -> b #

foldl' :: (b -> a -> b) -> b -> Node a -> b #

foldr1 :: (a -> a -> a) -> Node a -> a #

foldl1 :: (a -> a -> a) -> Node a -> a #

toList :: Node a -> [a] #

null :: Node a -> Bool #

length :: Node a -> Int #

elem :: Eq a => a -> Node a -> Bool #

maximum :: Ord a => Node a -> a #

minimum :: Ord a => Node a -> a #

sum :: Num a => Node a -> a #

product :: Num a => Node a -> a #

Foldable Elem 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => Elem m -> m #

foldMap :: Monoid m => (a -> m) -> Elem a -> m #

foldr :: (a -> b -> b) -> b -> Elem a -> b #

foldr' :: (a -> b -> b) -> b -> Elem a -> b #

foldl :: (b -> a -> b) -> b -> Elem a -> b #

foldl' :: (b -> a -> b) -> b -> Elem a -> b #

foldr1 :: (a -> a -> a) -> Elem a -> a #

foldl1 :: (a -> a -> a) -> Elem a -> a #

toList :: Elem a -> [a] #

null :: Elem a -> Bool #

length :: Elem a -> Int #

elem :: Eq a => a -> Elem a -> Bool #

maximum :: Ord a => Elem a -> a #

minimum :: Ord a => Elem a -> a #

sum :: Num a => Elem a -> a #

product :: Num a => Elem a -> a #

Foldable ViewL 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => ViewL m -> m #

foldMap :: Monoid m => (a -> m) -> ViewL a -> m #

foldr :: (a -> b -> b) -> b -> ViewL a -> b #

foldr' :: (a -> b -> b) -> b -> ViewL a -> b #

foldl :: (b -> a -> b) -> b -> ViewL a -> b #

foldl' :: (b -> a -> b) -> b -> ViewL a -> b #

foldr1 :: (a -> a -> a) -> ViewL a -> a #

foldl1 :: (a -> a -> a) -> ViewL a -> a #

toList :: ViewL a -> [a] #

null :: ViewL a -> Bool #

length :: ViewL a -> Int #

elem :: Eq a => a -> ViewL a -> Bool #

maximum :: Ord a => ViewL a -> a #

minimum :: Ord a => ViewL a -> a #

sum :: Num a => ViewL a -> a #

product :: Num a => ViewL a -> a #

Foldable ViewR 
Instance details

Defined in Data.Sequence.Internal

Methods

fold :: Monoid m => ViewR m -> m #

foldMap :: Monoid m => (a -> m) -> ViewR a -> m #

foldr :: (a -> b -> b) -> b -> ViewR a -> b #

foldr' :: (a -> b -> b) -> b -> ViewR a -> b #

foldl :: (b -> a -> b) -> b -> ViewR a -> b #

foldl' :: (b -> a -> b) -> b -> ViewR a -> b #

foldr1 :: (a -> a -> a) -> ViewR a -> a #

foldl1 :: (a -> a -> a) -> ViewR a -> a #

toList :: ViewR a -> [a] #

null :: ViewR a -> Bool #

length :: ViewR a -> Int #

elem :: Eq a => a -> ViewR a -> Bool #

maximum :: Ord a => ViewR a -> a #

minimum :: Ord a => ViewR a -> a #

sum :: Num a => ViewR a -> a #

product :: Num a => ViewR a -> a #

Foldable DList 
Instance details

Defined in Data.DList

Methods

fold :: Monoid m => DList m -> m #

foldMap :: Monoid m => (a -> m) -> DList a -> m #

foldr :: (a -> b -> b) -> b -> DList a -> b #

foldr' :: (a -> b -> b) -> b -> DList a -> b #

foldl :: (b -> a -> b) -> b -> DList a -> b #

foldl' :: (b -> a -> b) -> b -> DList a -> b #

foldr1 :: (a -> a -> a) -> DList a -> a #

foldl1 :: (a -> a -> a) -> DList a -> a #

toList :: DList a -> [a] #

null :: DList a -> Bool #

length :: DList a -> Int #

elem :: Eq a => a -> DList a -> Bool #

maximum :: Ord a => DList a -> a #

minimum :: Ord a => DList a -> a #

sum :: Num a => DList a -> a #

product :: Num a => DList a -> a #

Foldable Hashed 
Instance details

Defined in Data.Hashable.Class

Methods

fold :: Monoid m => Hashed m -> m #

foldMap :: Monoid m => (a -> m) -> Hashed a -> m #

foldr :: (a -> b -> b) -> b -> Hashed a -> b #

foldr' :: (a -> b -> b) -> b -> Hashed a -> b #

foldl :: (b -> a -> b) -> b -> Hashed a -> b #

foldl' :: (b -> a -> b) -> b -> Hashed a -> b #

foldr1 :: (a -> a -> a) -> Hashed a -> a #

foldl1 :: (a -> a -> a) -> Hashed a -> a #

toList :: Hashed a -> [a] #

null :: Hashed a -> Bool #

length :: Hashed a -> Int #

elem :: Eq a => a -> Hashed a -> Bool #

maximum :: Ord a => Hashed a -> a #

minimum :: Ord a => Hashed a -> a #

sum :: Num a => Hashed a -> a #

product :: Num a => Hashed a -> a #

Foldable Name 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Name m -> m #

foldMap :: Monoid m => (a -> m) -> Name a -> m #

foldr :: (a -> b -> b) -> b -> Name a -> b #

foldr' :: (a -> b -> b) -> b -> Name a -> b #

foldl :: (b -> a -> b) -> b -> Name a -> b #

foldl' :: (b -> a -> b) -> b -> Name a -> b #

foldr1 :: (a -> a -> a) -> Name a -> a #

foldl1 :: (a -> a -> a) -> Name a -> a #

toList :: Name a -> [a] #

null :: Name a -> Bool #

length :: Name a -> Int #

elem :: Eq a => a -> Name a -> Bool #

maximum :: Ord a => Name a -> a #

minimum :: Ord a => Name a -> a #

sum :: Num a => Name a -> a #

product :: Num a => Name a -> a #

Foldable Scoped 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fold :: Monoid m => Scoped m -> m #

foldMap :: Monoid m => (a -> m) -> Scoped a -> m #

foldr :: (a -> b -> b) -> b -> Scoped a -> b #

foldr' :: (a -> b -> b) -> b -> Scoped a -> b #

foldl :: (b -> a -> b) -> b -> Scoped a -> b #

foldl' :: (b -> a -> b) -> b -> Scoped a -> b #

foldr1 :: (a -> a -> a) -> Scoped a -> a #

foldl1 :: (a -> a -> a) -> Scoped a -> a #

toList :: Scoped a -> [a] #

null :: Scoped a -> Bool #

length :: Scoped a -> Int #

elem :: Eq a => a -> Scoped a -> Bool #

maximum :: Ord a => Scoped a -> a #

minimum :: Ord a => Scoped a -> a #

sum :: Num a => Scoped a -> a #

product :: Num a => Scoped a -> a #

Foldable NameInfo 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fold :: Monoid m => NameInfo m -> m #

foldMap :: Monoid m => (a -> m) -> NameInfo a -> m #

foldr :: (a -> b -> b) -> b -> NameInfo a -> b #

foldr' :: (a -> b -> b) -> b -> NameInfo a -> b #

foldl :: (b -> a -> b) -> b -> NameInfo a -> b #

foldl' :: (b -> a -> b) -> b -> NameInfo a -> b #

foldr1 :: (a -> a -> a) -> NameInfo a -> a #

foldl1 :: (a -> a -> a) -> NameInfo a -> a #

toList :: NameInfo a -> [a] #

null :: NameInfo a -> Bool #

length :: NameInfo a -> Int #

elem :: Eq a => a -> NameInfo a -> Bool #

maximum :: Ord a => NameInfo a -> a #

minimum :: Ord a => NameInfo a -> a #

sum :: Num a => NameInfo a -> a #

product :: Num a => NameInfo a -> a #

Foldable Error 
Instance details

Defined in Language.Haskell.Names.Types

Methods

fold :: Monoid m => Error m -> m #

foldMap :: Monoid m => (a -> m) -> Error a -> m #

foldr :: (a -> b -> b) -> b -> Error a -> b #

foldr' :: (a -> b -> b) -> b -> Error a -> b #

foldl :: (b -> a -> b) -> b -> Error a -> b #

foldl' :: (b -> a -> b) -> b -> Error a -> b #

foldr1 :: (a -> a -> a) -> Error a -> a #

foldl1 :: (a -> a -> a) -> Error a -> a #

toList :: Error a -> [a] #

null :: Error a -> Bool #

length :: Error a -> Int #

elem :: Eq a => a -> Error a -> Bool #

maximum :: Ord a => Error a -> a #

minimum :: Ord a => Error a -> a #

sum :: Num a => Error a -> a #

product :: Num a => Error a -> a #

Foldable ModuleName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ModuleName m -> m #

foldMap :: Monoid m => (a -> m) -> ModuleName a -> m #

foldr :: (a -> b -> b) -> b -> ModuleName a -> b #

foldr' :: (a -> b -> b) -> b -> ModuleName a -> b #

foldl :: (b -> a -> b) -> b -> ModuleName a -> b #

foldl' :: (b -> a -> b) -> b -> ModuleName a -> b #

foldr1 :: (a -> a -> a) -> ModuleName a -> a #

foldl1 :: (a -> a -> a) -> ModuleName a -> a #

toList :: ModuleName a -> [a] #

null :: ModuleName a -> Bool #

length :: ModuleName a -> Int #

elem :: Eq a => a -> ModuleName a -> Bool #

maximum :: Ord a => ModuleName a -> a #

minimum :: Ord a => ModuleName a -> a #

sum :: Num a => ModuleName a -> a #

product :: Num a => ModuleName a -> a #

Foldable SpecialCon 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => SpecialCon m -> m #

foldMap :: Monoid m => (a -> m) -> SpecialCon a -> m #

foldr :: (a -> b -> b) -> b -> SpecialCon a -> b #

foldr' :: (a -> b -> b) -> b -> SpecialCon a -> b #

foldl :: (b -> a -> b) -> b -> SpecialCon a -> b #

foldl' :: (b -> a -> b) -> b -> SpecialCon a -> b #

foldr1 :: (a -> a -> a) -> SpecialCon a -> a #

foldl1 :: (a -> a -> a) -> SpecialCon a -> a #

toList :: SpecialCon a -> [a] #

null :: SpecialCon a -> Bool #

length :: SpecialCon a -> Int #

elem :: Eq a => a -> SpecialCon a -> Bool #

maximum :: Ord a => SpecialCon a -> a #

minimum :: Ord a => SpecialCon a -> a #

sum :: Num a => SpecialCon a -> a #

product :: Num a => SpecialCon a -> a #

Foldable QName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => QName m -> m #

foldMap :: Monoid m => (a -> m) -> QName a -> m #

foldr :: (a -> b -> b) -> b -> QName a -> b #

foldr' :: (a -> b -> b) -> b -> QName a -> b #

foldl :: (b -> a -> b) -> b -> QName a -> b #

foldl' :: (b -> a -> b) -> b -> QName a -> b #

foldr1 :: (a -> a -> a) -> QName a -> a #

foldl1 :: (a -> a -> a) -> QName a -> a #

toList :: QName a -> [a] #

null :: QName a -> Bool #

length :: QName a -> Int #

elem :: Eq a => a -> QName a -> Bool #

maximum :: Ord a => QName a -> a #

minimum :: Ord a => QName a -> a #

sum :: Num a => QName a -> a #

product :: Num a => QName a -> a #

Foldable IPName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => IPName m -> m #

foldMap :: Monoid m => (a -> m) -> IPName a -> m #

foldr :: (a -> b -> b) -> b -> IPName a -> b #

foldr' :: (a -> b -> b) -> b -> IPName a -> b #

foldl :: (b -> a -> b) -> b -> IPName a -> b #

foldl' :: (b -> a -> b) -> b -> IPName a -> b #

foldr1 :: (a -> a -> a) -> IPName a -> a #

foldl1 :: (a -> a -> a) -> IPName a -> a #

toList :: IPName a -> [a] #

null :: IPName a -> Bool #

length :: IPName a -> Int #

elem :: Eq a => a -> IPName a -> Bool #

maximum :: Ord a => IPName a -> a #

minimum :: Ord a => IPName a -> a #

sum :: Num a => IPName a -> a #

product :: Num a => IPName a -> a #

Foldable QOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => QOp m -> m #

foldMap :: Monoid m => (a -> m) -> QOp a -> m #

foldr :: (a -> b -> b) -> b -> QOp a -> b #

foldr' :: (a -> b -> b) -> b -> QOp a -> b #

foldl :: (b -> a -> b) -> b -> QOp a -> b #

foldl' :: (b -> a -> b) -> b -> QOp a -> b #

foldr1 :: (a -> a -> a) -> QOp a -> a #

foldl1 :: (a -> a -> a) -> QOp a -> a #

toList :: QOp a -> [a] #

null :: QOp a -> Bool #

length :: QOp a -> Int #

elem :: Eq a => a -> QOp a -> Bool #

maximum :: Ord a => QOp a -> a #

minimum :: Ord a => QOp a -> a #

sum :: Num a => QOp a -> a #

product :: Num a => QOp a -> a #

Foldable Op 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Op m -> m #

foldMap :: Monoid m => (a -> m) -> Op a -> m #

foldr :: (a -> b -> b) -> b -> Op a -> b #

foldr' :: (a -> b -> b) -> b -> Op a -> b #

foldl :: (b -> a -> b) -> b -> Op a -> b #

foldl' :: (b -> a -> b) -> b -> Op a -> b #

foldr1 :: (a -> a -> a) -> Op a -> a #

foldl1 :: (a -> a -> a) -> Op a -> a #

toList :: Op a -> [a] #

null :: Op a -> Bool #

length :: Op a -> Int #

elem :: Eq a => a -> Op a -> Bool #

maximum :: Ord a => Op a -> a #

minimum :: Ord a => Op a -> a #

sum :: Num a => Op a -> a #

product :: Num a => Op a -> a #

Foldable CName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => CName m -> m #

foldMap :: Monoid m => (a -> m) -> CName a -> m #

foldr :: (a -> b -> b) -> b -> CName a -> b #

foldr' :: (a -> b -> b) -> b -> CName a -> b #

foldl :: (b -> a -> b) -> b -> CName a -> b #

foldl' :: (b -> a -> b) -> b -> CName a -> b #

foldr1 :: (a -> a -> a) -> CName a -> a #

foldl1 :: (a -> a -> a) -> CName a -> a #

toList :: CName a -> [a] #

null :: CName a -> Bool #

length :: CName a -> Int #

elem :: Eq a => a -> CName a -> Bool #

maximum :: Ord a => CName a -> a #

minimum :: Ord a => CName a -> a #

sum :: Num a => CName a -> a #

product :: Num a => CName a -> a #

Foldable Module 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Module m -> m #

foldMap :: Monoid m => (a -> m) -> Module a -> m #

foldr :: (a -> b -> b) -> b -> Module a -> b #

foldr' :: (a -> b -> b) -> b -> Module a -> b #

foldl :: (b -> a -> b) -> b -> Module a -> b #

foldl' :: (b -> a -> b) -> b -> Module a -> b #

foldr1 :: (a -> a -> a) -> Module a -> a #

foldl1 :: (a -> a -> a) -> Module a -> a #

toList :: Module a -> [a] #

null :: Module a -> Bool #

length :: Module a -> Int #

elem :: Eq a => a -> Module a -> Bool #

maximum :: Ord a => Module a -> a #

minimum :: Ord a => Module a -> a #

sum :: Num a => Module a -> a #

product :: Num a => Module a -> a #

Foldable ModuleHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ModuleHead m -> m #

foldMap :: Monoid m => (a -> m) -> ModuleHead a -> m #

foldr :: (a -> b -> b) -> b -> ModuleHead a -> b #

foldr' :: (a -> b -> b) -> b -> ModuleHead a -> b #

foldl :: (b -> a -> b) -> b -> ModuleHead a -> b #

foldl' :: (b -> a -> b) -> b -> ModuleHead a -> b #

foldr1 :: (a -> a -> a) -> ModuleHead a -> a #

foldl1 :: (a -> a -> a) -> ModuleHead a -> a #

toList :: ModuleHead a -> [a] #

null :: ModuleHead a -> Bool #

length :: ModuleHead a -> Int #

elem :: Eq a => a -> ModuleHead a -> Bool #

maximum :: Ord a => ModuleHead a -> a #

minimum :: Ord a => ModuleHead a -> a #

sum :: Num a => ModuleHead a -> a #

product :: Num a => ModuleHead a -> a #

Foldable ExportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ExportSpecList m -> m #

foldMap :: Monoid m => (a -> m) -> ExportSpecList a -> m #

foldr :: (a -> b -> b) -> b -> ExportSpecList a -> b #

foldr' :: (a -> b -> b) -> b -> ExportSpecList a -> b #

foldl :: (b -> a -> b) -> b -> ExportSpecList a -> b #

foldl' :: (b -> a -> b) -> b -> ExportSpecList a -> b #

foldr1 :: (a -> a -> a) -> ExportSpecList a -> a #

foldl1 :: (a -> a -> a) -> ExportSpecList a -> a #

toList :: ExportSpecList a -> [a] #

null :: ExportSpecList a -> Bool #

length :: ExportSpecList a -> Int #

elem :: Eq a => a -> ExportSpecList a -> Bool #

maximum :: Ord a => ExportSpecList a -> a #

minimum :: Ord a => ExportSpecList a -> a #

sum :: Num a => ExportSpecList a -> a #

product :: Num a => ExportSpecList a -> a #

Foldable ExportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ExportSpec m -> m #

foldMap :: Monoid m => (a -> m) -> ExportSpec a -> m #

foldr :: (a -> b -> b) -> b -> ExportSpec a -> b #

foldr' :: (a -> b -> b) -> b -> ExportSpec a -> b #

foldl :: (b -> a -> b) -> b -> ExportSpec a -> b #

foldl' :: (b -> a -> b) -> b -> ExportSpec a -> b #

foldr1 :: (a -> a -> a) -> ExportSpec a -> a #

foldl1 :: (a -> a -> a) -> ExportSpec a -> a #

toList :: ExportSpec a -> [a] #

null :: ExportSpec a -> Bool #

length :: ExportSpec a -> Int #

elem :: Eq a => a -> ExportSpec a -> Bool #

maximum :: Ord a => ExportSpec a -> a #

minimum :: Ord a => ExportSpec a -> a #

sum :: Num a => ExportSpec a -> a #

product :: Num a => ExportSpec a -> a #

Foldable EWildcard 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => EWildcard m -> m #

foldMap :: Monoid m => (a -> m) -> EWildcard a -> m #

foldr :: (a -> b -> b) -> b -> EWildcard a -> b #

foldr' :: (a -> b -> b) -> b -> EWildcard a -> b #

foldl :: (b -> a -> b) -> b -> EWildcard a -> b #

foldl' :: (b -> a -> b) -> b -> EWildcard a -> b #

foldr1 :: (a -> a -> a) -> EWildcard a -> a #

foldl1 :: (a -> a -> a) -> EWildcard a -> a #

toList :: EWildcard a -> [a] #

null :: EWildcard a -> Bool #

length :: EWildcard a -> Int #

elem :: Eq a => a -> EWildcard a -> Bool #

maximum :: Ord a => EWildcard a -> a #

minimum :: Ord a => EWildcard a -> a #

sum :: Num a => EWildcard a -> a #

product :: Num a => EWildcard a -> a #

Foldable Namespace 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Namespace m -> m #

foldMap :: Monoid m => (a -> m) -> Namespace a -> m #

foldr :: (a -> b -> b) -> b -> Namespace a -> b #

foldr' :: (a -> b -> b) -> b -> Namespace a -> b #

foldl :: (b -> a -> b) -> b -> Namespace a -> b #

foldl' :: (b -> a -> b) -> b -> Namespace a -> b #

foldr1 :: (a -> a -> a) -> Namespace a -> a #

foldl1 :: (a -> a -> a) -> Namespace a -> a #

toList :: Namespace a -> [a] #

null :: Namespace a -> Bool #

length :: Namespace a -> Int #

elem :: Eq a => a -> Namespace a -> Bool #

maximum :: Ord a => Namespace a -> a #

minimum :: Ord a => Namespace a -> a #

sum :: Num a => Namespace a -> a #

product :: Num a => Namespace a -> a #

Foldable ImportDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ImportDecl m -> m #

foldMap :: Monoid m => (a -> m) -> ImportDecl a -> m #

foldr :: (a -> b -> b) -> b -> ImportDecl a -> b #

foldr' :: (a -> b -> b) -> b -> ImportDecl a -> b #

foldl :: (b -> a -> b) -> b -> ImportDecl a -> b #

foldl' :: (b -> a -> b) -> b -> ImportDecl a -> b #

foldr1 :: (a -> a -> a) -> ImportDecl a -> a #

foldl1 :: (a -> a -> a) -> ImportDecl a -> a #

toList :: ImportDecl a -> [a] #

null :: ImportDecl a -> Bool #

length :: ImportDecl a -> Int #

elem :: Eq a => a -> ImportDecl a -> Bool #

maximum :: Ord a => ImportDecl a -> a #

minimum :: Ord a => ImportDecl a -> a #

sum :: Num a => ImportDecl a -> a #

product :: Num a => ImportDecl a -> a #

Foldable ImportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ImportSpecList m -> m #

foldMap :: Monoid m => (a -> m) -> ImportSpecList a -> m #

foldr :: (a -> b -> b) -> b -> ImportSpecList a -> b #

foldr' :: (a -> b -> b) -> b -> ImportSpecList a -> b #

foldl :: (b -> a -> b) -> b -> ImportSpecList a -> b #

foldl' :: (b -> a -> b) -> b -> ImportSpecList a -> b #

foldr1 :: (a -> a -> a) -> ImportSpecList a -> a #

foldl1 :: (a -> a -> a) -> ImportSpecList a -> a #

toList :: ImportSpecList a -> [a] #

null :: ImportSpecList a -> Bool #

length :: ImportSpecList a -> Int #

elem :: Eq a => a -> ImportSpecList a -> Bool #

maximum :: Ord a => ImportSpecList a -> a #

minimum :: Ord a => ImportSpecList a -> a #

sum :: Num a => ImportSpecList a -> a #

product :: Num a => ImportSpecList a -> a #

Foldable ImportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ImportSpec m -> m #

foldMap :: Monoid m => (a -> m) -> ImportSpec a -> m #

foldr :: (a -> b -> b) -> b -> ImportSpec a -> b #

foldr' :: (a -> b -> b) -> b -> ImportSpec a -> b #

foldl :: (b -> a -> b) -> b -> ImportSpec a -> b #

foldl' :: (b -> a -> b) -> b -> ImportSpec a -> b #

foldr1 :: (a -> a -> a) -> ImportSpec a -> a #

foldl1 :: (a -> a -> a) -> ImportSpec a -> a #

toList :: ImportSpec a -> [a] #

null :: ImportSpec a -> Bool #

length :: ImportSpec a -> Int #

elem :: Eq a => a -> ImportSpec a -> Bool #

maximum :: Ord a => ImportSpec a -> a #

minimum :: Ord a => ImportSpec a -> a #

sum :: Num a => ImportSpec a -> a #

product :: Num a => ImportSpec a -> a #

Foldable Assoc 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Assoc m -> m #

foldMap :: Monoid m => (a -> m) -> Assoc a -> m #

foldr :: (a -> b -> b) -> b -> Assoc a -> b #

foldr' :: (a -> b -> b) -> b -> Assoc a -> b #

foldl :: (b -> a -> b) -> b -> Assoc a -> b #

foldl' :: (b -> a -> b) -> b -> Assoc a -> b #

foldr1 :: (a -> a -> a) -> Assoc a -> a #

foldl1 :: (a -> a -> a) -> Assoc a -> a #

toList :: Assoc a -> [a] #

null :: Assoc a -> Bool #

length :: Assoc a -> Int #

elem :: Eq a => a -> Assoc a -> Bool #

maximum :: Ord a => Assoc a -> a #

minimum :: Ord a => Assoc a -> a #

sum :: Num a => Assoc a -> a #

product :: Num a => Assoc a -> a #

Foldable Decl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Decl m -> m #

foldMap :: Monoid m => (a -> m) -> Decl a -> m #

foldr :: (a -> b -> b) -> b -> Decl a -> b #

foldr' :: (a -> b -> b) -> b -> Decl a -> b #

foldl :: (b -> a -> b) -> b -> Decl a -> b #

foldl' :: (b -> a -> b) -> b -> Decl a -> b #

foldr1 :: (a -> a -> a) -> Decl a -> a #

foldl1 :: (a -> a -> a) -> Decl a -> a #

toList :: Decl a -> [a] #

null :: Decl a -> Bool #

length :: Decl a -> Int #

elem :: Eq a => a -> Decl a -> Bool #

maximum :: Ord a => Decl a -> a #

minimum :: Ord a => Decl a -> a #

sum :: Num a => Decl a -> a #

product :: Num a => Decl a -> a #

Foldable PatternSynDirection 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => PatternSynDirection m -> m #

foldMap :: Monoid m => (a -> m) -> PatternSynDirection a -> m #

foldr :: (a -> b -> b) -> b -> PatternSynDirection a -> b #

foldr' :: (a -> b -> b) -> b -> PatternSynDirection a -> b #

foldl :: (b -> a -> b) -> b -> PatternSynDirection a -> b #

foldl' :: (b -> a -> b) -> b -> PatternSynDirection a -> b #

foldr1 :: (a -> a -> a) -> PatternSynDirection a -> a #

foldl1 :: (a -> a -> a) -> PatternSynDirection a -> a #

toList :: PatternSynDirection a -> [a] #

null :: PatternSynDirection a -> Bool #

length :: PatternSynDirection a -> Int #

elem :: Eq a => a -> PatternSynDirection a -> Bool #

maximum :: Ord a => PatternSynDirection a -> a #

minimum :: Ord a => PatternSynDirection a -> a #

sum :: Num a => PatternSynDirection a -> a #

product :: Num a => PatternSynDirection a -> a #

Foldable TypeEqn 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => TypeEqn m -> m #

foldMap :: Monoid m => (a -> m) -> TypeEqn a -> m #

foldr :: (a -> b -> b) -> b -> TypeEqn a -> b #

foldr' :: (a -> b -> b) -> b -> TypeEqn a -> b #

foldl :: (b -> a -> b) -> b -> TypeEqn a -> b #

foldl' :: (b -> a -> b) -> b -> TypeEqn a -> b #

foldr1 :: (a -> a -> a) -> TypeEqn a -> a #

foldl1 :: (a -> a -> a) -> TypeEqn a -> a #

toList :: TypeEqn a -> [a] #

null :: TypeEqn a -> Bool #

length :: TypeEqn a -> Int #

elem :: Eq a => a -> TypeEqn a -> Bool #

maximum :: Ord a => TypeEqn a -> a #

minimum :: Ord a => TypeEqn a -> a #

sum :: Num a => TypeEqn a -> a #

product :: Num a => TypeEqn a -> a #

Foldable Annotation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Annotation m -> m #

foldMap :: Monoid m => (a -> m) -> Annotation a -> m #

foldr :: (a -> b -> b) -> b -> Annotation a -> b #

foldr' :: (a -> b -> b) -> b -> Annotation a -> b #

foldl :: (b -> a -> b) -> b -> Annotation a -> b #

foldl' :: (b -> a -> b) -> b -> Annotation a -> b #

foldr1 :: (a -> a -> a) -> Annotation a -> a #

foldl1 :: (a -> a -> a) -> Annotation a -> a #

toList :: Annotation a -> [a] #

null :: Annotation a -> Bool #

length :: Annotation a -> Int #

elem :: Eq a => a -> Annotation a -> Bool #

maximum :: Ord a => Annotation a -> a #

minimum :: Ord a => Annotation a -> a #

sum :: Num a => Annotation a -> a #

product :: Num a => Annotation a -> a #

Foldable BooleanFormula 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => BooleanFormula m -> m #

foldMap :: Monoid m => (a -> m) -> BooleanFormula a -> m #

foldr :: (a -> b -> b) -> b -> BooleanFormula a -> b #

foldr' :: (a -> b -> b) -> b -> BooleanFormula a -> b #

foldl :: (b -> a -> b) -> b -> BooleanFormula a -> b #

foldl' :: (b -> a -> b) -> b -> BooleanFormula a -> b #

foldr1 :: (a -> a -> a) -> BooleanFormula a -> a #

foldl1 :: (a -> a -> a) -> BooleanFormula a -> a #

toList :: BooleanFormula a -> [a] #

null :: BooleanFormula a -> Bool #

length :: BooleanFormula a -> Int #

elem :: Eq a => a -> BooleanFormula a -> Bool #

maximum :: Ord a => BooleanFormula a -> a #

minimum :: Ord a => BooleanFormula a -> a #

sum :: Num a => BooleanFormula a -> a #

product :: Num a => BooleanFormula a -> a #

Foldable Role 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Role m -> m #

foldMap :: Monoid m => (a -> m) -> Role a -> m #

foldr :: (a -> b -> b) -> b -> Role a -> b #

foldr' :: (a -> b -> b) -> b -> Role a -> b #

foldl :: (b -> a -> b) -> b -> Role a -> b #

foldl' :: (b -> a -> b) -> b -> Role a -> b #

foldr1 :: (a -> a -> a) -> Role a -> a #

foldl1 :: (a -> a -> a) -> Role a -> a #

toList :: Role a -> [a] #

null :: Role a -> Bool #

length :: Role a -> Int #

elem :: Eq a => a -> Role a -> Bool #

maximum :: Ord a => Role a -> a #

minimum :: Ord a => Role a -> a #

sum :: Num a => Role a -> a #

product :: Num a => Role a -> a #

Foldable DataOrNew 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => DataOrNew m -> m #

foldMap :: Monoid m => (a -> m) -> DataOrNew a -> m #

foldr :: (a -> b -> b) -> b -> DataOrNew a -> b #

foldr' :: (a -> b -> b) -> b -> DataOrNew a -> b #

foldl :: (b -> a -> b) -> b -> DataOrNew a -> b #

foldl' :: (b -> a -> b) -> b -> DataOrNew a -> b #

foldr1 :: (a -> a -> a) -> DataOrNew a -> a #

foldl1 :: (a -> a -> a) -> DataOrNew a -> a #

toList :: DataOrNew a -> [a] #

null :: DataOrNew a -> Bool #

length :: DataOrNew a -> Int #

elem :: Eq a => a -> DataOrNew a -> Bool #

maximum :: Ord a => DataOrNew a -> a #

minimum :: Ord a => DataOrNew a -> a #

sum :: Num a => DataOrNew a -> a #

product :: Num a => DataOrNew a -> a #

Foldable InjectivityInfo 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => InjectivityInfo m -> m #

foldMap :: Monoid m => (a -> m) -> InjectivityInfo a -> m #

foldr :: (a -> b -> b) -> b -> InjectivityInfo a -> b #

foldr' :: (a -> b -> b) -> b -> InjectivityInfo a -> b #

foldl :: (b -> a -> b) -> b -> InjectivityInfo a -> b #

foldl' :: (b -> a -> b) -> b -> InjectivityInfo a -> b #

foldr1 :: (a -> a -> a) -> InjectivityInfo a -> a #

foldl1 :: (a -> a -> a) -> InjectivityInfo a -> a #

toList :: InjectivityInfo a -> [a] #

null :: InjectivityInfo a -> Bool #

length :: InjectivityInfo a -> Int #

elem :: Eq a => a -> InjectivityInfo a -> Bool #

maximum :: Ord a => InjectivityInfo a -> a #

minimum :: Ord a => InjectivityInfo a -> a #

sum :: Num a => InjectivityInfo a -> a #

product :: Num a => InjectivityInfo a -> a #

Foldable ResultSig 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ResultSig m -> m #

foldMap :: Monoid m => (a -> m) -> ResultSig a -> m #

foldr :: (a -> b -> b) -> b -> ResultSig a -> b #

foldr' :: (a -> b -> b) -> b -> ResultSig a -> b #

foldl :: (b -> a -> b) -> b -> ResultSig a -> b #

foldl' :: (b -> a -> b) -> b -> ResultSig a -> b #

foldr1 :: (a -> a -> a) -> ResultSig a -> a #

foldl1 :: (a -> a -> a) -> ResultSig a -> a #

toList :: ResultSig a -> [a] #

null :: ResultSig a -> Bool #

length :: ResultSig a -> Int #

elem :: Eq a => a -> ResultSig a -> Bool #

maximum :: Ord a => ResultSig a -> a #

minimum :: Ord a => ResultSig a -> a #

sum :: Num a => ResultSig a -> a #

product :: Num a => ResultSig a -> a #

Foldable DeclHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => DeclHead m -> m #

foldMap :: Monoid m => (a -> m) -> DeclHead a -> m #

foldr :: (a -> b -> b) -> b -> DeclHead a -> b #

foldr' :: (a -> b -> b) -> b -> DeclHead a -> b #

foldl :: (b -> a -> b) -> b -> DeclHead a -> b #

foldl' :: (b -> a -> b) -> b -> DeclHead a -> b #

foldr1 :: (a -> a -> a) -> DeclHead a -> a #

foldl1 :: (a -> a -> a) -> DeclHead a -> a #

toList :: DeclHead a -> [a] #

null :: DeclHead a -> Bool #

length :: DeclHead a -> Int #

elem :: Eq a => a -> DeclHead a -> Bool #

maximum :: Ord a => DeclHead a -> a #

minimum :: Ord a => DeclHead a -> a #

sum :: Num a => DeclHead a -> a #

product :: Num a => DeclHead a -> a #

Foldable InstRule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => InstRule m -> m #

foldMap :: Monoid m => (a -> m) -> InstRule a -> m #

foldr :: (a -> b -> b) -> b -> InstRule a -> b #

foldr' :: (a -> b -> b) -> b -> InstRule a -> b #

foldl :: (b -> a -> b) -> b -> InstRule a -> b #

foldl' :: (b -> a -> b) -> b -> InstRule a -> b #

foldr1 :: (a -> a -> a) -> InstRule a -> a #

foldl1 :: (a -> a -> a) -> InstRule a -> a #

toList :: InstRule a -> [a] #

null :: InstRule a -> Bool #

length :: InstRule a -> Int #

elem :: Eq a => a -> InstRule a -> Bool #

maximum :: Ord a => InstRule a -> a #

minimum :: Ord a => InstRule a -> a #

sum :: Num a => InstRule a -> a #

product :: Num a => InstRule a -> a #

Foldable InstHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => InstHead m -> m #

foldMap :: Monoid m => (a -> m) -> InstHead a -> m #

foldr :: (a -> b -> b) -> b -> InstHead a -> b #

foldr' :: (a -> b -> b) -> b -> InstHead a -> b #

foldl :: (b -> a -> b) -> b -> InstHead a -> b #

foldl' :: (b -> a -> b) -> b -> InstHead a -> b #

foldr1 :: (a -> a -> a) -> InstHead a -> a #

foldl1 :: (a -> a -> a) -> InstHead a -> a #

toList :: InstHead a -> [a] #

null :: InstHead a -> Bool #

length :: InstHead a -> Int #

elem :: Eq a => a -> InstHead a -> Bool #

maximum :: Ord a => InstHead a -> a #

minimum :: Ord a => InstHead a -> a #

sum :: Num a => InstHead a -> a #

product :: Num a => InstHead a -> a #

Foldable Deriving 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Deriving m -> m #

foldMap :: Monoid m => (a -> m) -> Deriving a -> m #

foldr :: (a -> b -> b) -> b -> Deriving a -> b #

foldr' :: (a -> b -> b) -> b -> Deriving a -> b #

foldl :: (b -> a -> b) -> b -> Deriving a -> b #

foldl' :: (b -> a -> b) -> b -> Deriving a -> b #

foldr1 :: (a -> a -> a) -> Deriving a -> a #

foldl1 :: (a -> a -> a) -> Deriving a -> a #

toList :: Deriving a -> [a] #

null :: Deriving a -> Bool #

length :: Deriving a -> Int #

elem :: Eq a => a -> Deriving a -> Bool #

maximum :: Ord a => Deriving a -> a #

minimum :: Ord a => Deriving a -> a #

sum :: Num a => Deriving a -> a #

product :: Num a => Deriving a -> a #

Foldable DerivStrategy 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => DerivStrategy m -> m #

foldMap :: Monoid m => (a -> m) -> DerivStrategy a -> m #

foldr :: (a -> b -> b) -> b -> DerivStrategy a -> b #

foldr' :: (a -> b -> b) -> b -> DerivStrategy a -> b #

foldl :: (b -> a -> b) -> b -> DerivStrategy a -> b #

foldl' :: (b -> a -> b) -> b -> DerivStrategy a -> b #

foldr1 :: (a -> a -> a) -> DerivStrategy a -> a #

foldl1 :: (a -> a -> a) -> DerivStrategy a -> a #

toList :: DerivStrategy a -> [a] #

null :: DerivStrategy a -> Bool #

length :: DerivStrategy a -> Int #

elem :: Eq a => a -> DerivStrategy a -> Bool #

maximum :: Ord a => DerivStrategy a -> a #

minimum :: Ord a => DerivStrategy a -> a #

sum :: Num a => DerivStrategy a -> a #

product :: Num a => DerivStrategy a -> a #

Foldable Binds 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Binds m -> m #

foldMap :: Monoid m => (a -> m) -> Binds a -> m #

foldr :: (a -> b -> b) -> b -> Binds a -> b #

foldr' :: (a -> b -> b) -> b -> Binds a -> b #

foldl :: (b -> a -> b) -> b -> Binds a -> b #

foldl' :: (b -> a -> b) -> b -> Binds a -> b #

foldr1 :: (a -> a -> a) -> Binds a -> a #

foldl1 :: (a -> a -> a) -> Binds a -> a #

toList :: Binds a -> [a] #

null :: Binds a -> Bool #

length :: Binds a -> Int #

elem :: Eq a => a -> Binds a -> Bool #

maximum :: Ord a => Binds a -> a #

minimum :: Ord a => Binds a -> a #

sum :: Num a => Binds a -> a #

product :: Num a => Binds a -> a #

Foldable IPBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => IPBind m -> m #

foldMap :: Monoid m => (a -> m) -> IPBind a -> m #

foldr :: (a -> b -> b) -> b -> IPBind a -> b #

foldr' :: (a -> b -> b) -> b -> IPBind a -> b #

foldl :: (b -> a -> b) -> b -> IPBind a -> b #

foldl' :: (b -> a -> b) -> b -> IPBind a -> b #

foldr1 :: (a -> a -> a) -> IPBind a -> a #

foldl1 :: (a -> a -> a) -> IPBind a -> a #

toList :: IPBind a -> [a] #

null :: IPBind a -> Bool #

length :: IPBind a -> Int #

elem :: Eq a => a -> IPBind a -> Bool #

maximum :: Ord a => IPBind a -> a #

minimum :: Ord a => IPBind a -> a #

sum :: Num a => IPBind a -> a #

product :: Num a => IPBind a -> a #

Foldable Match 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Match m -> m #

foldMap :: Monoid m => (a -> m) -> Match a -> m #

foldr :: (a -> b -> b) -> b -> Match a -> b #

foldr' :: (a -> b -> b) -> b -> Match a -> b #

foldl :: (b -> a -> b) -> b -> Match a -> b #

foldl' :: (b -> a -> b) -> b -> Match a -> b #

foldr1 :: (a -> a -> a) -> Match a -> a #

foldl1 :: (a -> a -> a) -> Match a -> a #

toList :: Match a -> [a] #

null :: Match a -> Bool #

length :: Match a -> Int #

elem :: Eq a => a -> Match a -> Bool #

maximum :: Ord a => Match a -> a #

minimum :: Ord a => Match a -> a #

sum :: Num a => Match a -> a #

product :: Num a => Match a -> a #

Foldable QualConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => QualConDecl m -> m #

foldMap :: Monoid m => (a -> m) -> QualConDecl a -> m #

foldr :: (a -> b -> b) -> b -> QualConDecl a -> b #

foldr' :: (a -> b -> b) -> b -> QualConDecl a -> b #

foldl :: (b -> a -> b) -> b -> QualConDecl a -> b #

foldl' :: (b -> a -> b) -> b -> QualConDecl a -> b #

foldr1 :: (a -> a -> a) -> QualConDecl a -> a #

foldl1 :: (a -> a -> a) -> QualConDecl a -> a #

toList :: QualConDecl a -> [a] #

null :: QualConDecl a -> Bool #

length :: QualConDecl a -> Int #

elem :: Eq a => a -> QualConDecl a -> Bool #

maximum :: Ord a => QualConDecl a -> a #

minimum :: Ord a => QualConDecl a -> a #

sum :: Num a => QualConDecl a -> a #

product :: Num a => QualConDecl a -> a #

Foldable ConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ConDecl m -> m #

foldMap :: Monoid m => (a -> m) -> ConDecl a -> m #

foldr :: (a -> b -> b) -> b -> ConDecl a -> b #

foldr' :: (a -> b -> b) -> b -> ConDecl a -> b #

foldl :: (b -> a -> b) -> b -> ConDecl a -> b #

foldl' :: (b -> a -> b) -> b -> ConDecl a -> b #

foldr1 :: (a -> a -> a) -> ConDecl a -> a #

foldl1 :: (a -> a -> a) -> ConDecl a -> a #

toList :: ConDecl a -> [a] #

null :: ConDecl a -> Bool #

length :: ConDecl a -> Int #

elem :: Eq a => a -> ConDecl a -> Bool #

maximum :: Ord a => ConDecl a -> a #

minimum :: Ord a => ConDecl a -> a #

sum :: Num a => ConDecl a -> a #

product :: Num a => ConDecl a -> a #

Foldable FieldDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => FieldDecl m -> m #

foldMap :: Monoid m => (a -> m) -> FieldDecl a -> m #

foldr :: (a -> b -> b) -> b -> FieldDecl a -> b #

foldr' :: (a -> b -> b) -> b -> FieldDecl a -> b #

foldl :: (b -> a -> b) -> b -> FieldDecl a -> b #

foldl' :: (b -> a -> b) -> b -> FieldDecl a -> b #

foldr1 :: (a -> a -> a) -> FieldDecl a -> a #

foldl1 :: (a -> a -> a) -> FieldDecl a -> a #

toList :: FieldDecl a -> [a] #

null :: FieldDecl a -> Bool #

length :: FieldDecl a -> Int #

elem :: Eq a => a -> FieldDecl a -> Bool #

maximum :: Ord a => FieldDecl a -> a #

minimum :: Ord a => FieldDecl a -> a #

sum :: Num a => FieldDecl a -> a #

product :: Num a => FieldDecl a -> a #

Foldable GadtDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => GadtDecl m -> m #

foldMap :: Monoid m => (a -> m) -> GadtDecl a -> m #

foldr :: (a -> b -> b) -> b -> GadtDecl a -> b #

foldr' :: (a -> b -> b) -> b -> GadtDecl a -> b #

foldl :: (b -> a -> b) -> b -> GadtDecl a -> b #

foldl' :: (b -> a -> b) -> b -> GadtDecl a -> b #

foldr1 :: (a -> a -> a) -> GadtDecl a -> a #

foldl1 :: (a -> a -> a) -> GadtDecl a -> a #

toList :: GadtDecl a -> [a] #

null :: GadtDecl a -> Bool #

length :: GadtDecl a -> Int #

elem :: Eq a => a -> GadtDecl a -> Bool #

maximum :: Ord a => GadtDecl a -> a #

minimum :: Ord a => GadtDecl a -> a #

sum :: Num a => GadtDecl a -> a #

product :: Num a => GadtDecl a -> a #

Foldable ClassDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ClassDecl m -> m #

foldMap :: Monoid m => (a -> m) -> ClassDecl a -> m #

foldr :: (a -> b -> b) -> b -> ClassDecl a -> b #

foldr' :: (a -> b -> b) -> b -> ClassDecl a -> b #

foldl :: (b -> a -> b) -> b -> ClassDecl a -> b #

foldl' :: (b -> a -> b) -> b -> ClassDecl a -> b #

foldr1 :: (a -> a -> a) -> ClassDecl a -> a #

foldl1 :: (a -> a -> a) -> ClassDecl a -> a #

toList :: ClassDecl a -> [a] #

null :: ClassDecl a -> Bool #

length :: ClassDecl a -> Int #

elem :: Eq a => a -> ClassDecl a -> Bool #

maximum :: Ord a => ClassDecl a -> a #

minimum :: Ord a => ClassDecl a -> a #

sum :: Num a => ClassDecl a -> a #

product :: Num a => ClassDecl a -> a #

Foldable InstDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => InstDecl m -> m #

foldMap :: Monoid m => (a -> m) -> InstDecl a -> m #

foldr :: (a -> b -> b) -> b -> InstDecl a -> b #

foldr' :: (a -> b -> b) -> b -> InstDecl a -> b #

foldl :: (b -> a -> b) -> b -> InstDecl a -> b #

foldl' :: (b -> a -> b) -> b -> InstDecl a -> b #

foldr1 :: (a -> a -> a) -> InstDecl a -> a #

foldl1 :: (a -> a -> a) -> InstDecl a -> a #

toList :: InstDecl a -> [a] #

null :: InstDecl a -> Bool #

length :: InstDecl a -> Int #

elem :: Eq a => a -> InstDecl a -> Bool #

maximum :: Ord a => InstDecl a -> a #

minimum :: Ord a => InstDecl a -> a #

sum :: Num a => InstDecl a -> a #

product :: Num a => InstDecl a -> a #

Foldable BangType 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => BangType m -> m #

foldMap :: Monoid m => (a -> m) -> BangType a -> m #

foldr :: (a -> b -> b) -> b -> BangType a -> b #

foldr' :: (a -> b -> b) -> b -> BangType a -> b #

foldl :: (b -> a -> b) -> b -> BangType a -> b #

foldl' :: (b -> a -> b) -> b -> BangType a -> b #

foldr1 :: (a -> a -> a) -> BangType a -> a #

foldl1 :: (a -> a -> a) -> BangType a -> a #

toList :: BangType a -> [a] #

null :: BangType a -> Bool #

length :: BangType a -> Int #

elem :: Eq a => a -> BangType a -> Bool #

maximum :: Ord a => BangType a -> a #

minimum :: Ord a => BangType a -> a #

sum :: Num a => BangType a -> a #

product :: Num a => BangType a -> a #

Foldable Unpackedness 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Unpackedness m -> m #

foldMap :: Monoid m => (a -> m) -> Unpackedness a -> m #

foldr :: (a -> b -> b) -> b -> Unpackedness a -> b #

foldr' :: (a -> b -> b) -> b -> Unpackedness a -> b #

foldl :: (b -> a -> b) -> b -> Unpackedness a -> b #

foldl' :: (b -> a -> b) -> b -> Unpackedness a -> b #

foldr1 :: (a -> a -> a) -> Unpackedness a -> a #

foldl1 :: (a -> a -> a) -> Unpackedness a -> a #

toList :: Unpackedness a -> [a] #

null :: Unpackedness a -> Bool #

length :: Unpackedness a -> Int #

elem :: Eq a => a -> Unpackedness a -> Bool #

maximum :: Ord a => Unpackedness a -> a #

minimum :: Ord a => Unpackedness a -> a #

sum :: Num a => Unpackedness a -> a #

product :: Num a => Unpackedness a -> a #

Foldable Rhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Rhs m -> m #

foldMap :: Monoid m => (a -> m) -> Rhs a -> m #

foldr :: (a -> b -> b) -> b -> Rhs a -> b #

foldr' :: (a -> b -> b) -> b -> Rhs a -> b #

foldl :: (b -> a -> b) -> b -> Rhs a -> b #

foldl' :: (b -> a -> b) -> b -> Rhs a -> b #

foldr1 :: (a -> a -> a) -> Rhs a -> a #

foldl1 :: (a -> a -> a) -> Rhs a -> a #

toList :: Rhs a -> [a] #

null :: Rhs a -> Bool #

length :: Rhs a -> Int #

elem :: Eq a => a -> Rhs a -> Bool #

maximum :: Ord a => Rhs a -> a #

minimum :: Ord a => Rhs a -> a #

sum :: Num a => Rhs a -> a #

product :: Num a => Rhs a -> a #

Foldable GuardedRhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => GuardedRhs m -> m #

foldMap :: Monoid m => (a -> m) -> GuardedRhs a -> m #

foldr :: (a -> b -> b) -> b -> GuardedRhs a -> b #

foldr' :: (a -> b -> b) -> b -> GuardedRhs a -> b #

foldl :: (b -> a -> b) -> b -> GuardedRhs a -> b #

foldl' :: (b -> a -> b) -> b -> GuardedRhs a -> b #

foldr1 :: (a -> a -> a) -> GuardedRhs a -> a #

foldl1 :: (a -> a -> a) -> GuardedRhs a -> a #

toList :: GuardedRhs a -> [a] #

null :: GuardedRhs a -> Bool #

length :: GuardedRhs a -> Int #

elem :: Eq a => a -> GuardedRhs a -> Bool #

maximum :: Ord a => GuardedRhs a -> a #

minimum :: Ord a => GuardedRhs a -> a #

sum :: Num a => GuardedRhs a -> a #

product :: Num a => GuardedRhs a -> a #

Foldable Type 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Type m -> m #

foldMap :: Monoid m => (a -> m) -> Type a -> m #

foldr :: (a -> b -> b) -> b -> Type a -> b #

foldr' :: (a -> b -> b) -> b -> Type a -> b #

foldl :: (b -> a -> b) -> b -> Type a -> b #

foldl' :: (b -> a -> b) -> b -> Type a -> b #

foldr1 :: (a -> a -> a) -> Type a -> a #

foldl1 :: (a -> a -> a) -> Type a -> a #

toList :: Type a -> [a] #

null :: Type a -> Bool #

length :: Type a -> Int #

elem :: Eq a => a -> Type a -> Bool #

maximum :: Ord a => Type a -> a #

minimum :: Ord a => Type a -> a #

sum :: Num a => Type a -> a #

product :: Num a => Type a -> a #

Foldable MaybePromotedName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => MaybePromotedName m -> m #

foldMap :: Monoid m => (a -> m) -> MaybePromotedName a -> m #

foldr :: (a -> b -> b) -> b -> MaybePromotedName a -> b #

foldr' :: (a -> b -> b) -> b -> MaybePromotedName a -> b #

foldl :: (b -> a -> b) -> b -> MaybePromotedName a -> b #

foldl' :: (b -> a -> b) -> b -> MaybePromotedName a -> b #

foldr1 :: (a -> a -> a) -> MaybePromotedName a -> a #

foldl1 :: (a -> a -> a) -> MaybePromotedName a -> a #

toList :: MaybePromotedName a -> [a] #

null :: MaybePromotedName a -> Bool #

length :: MaybePromotedName a -> Int #

elem :: Eq a => a -> MaybePromotedName a -> Bool #

maximum :: Ord a => MaybePromotedName a -> a #

minimum :: Ord a => MaybePromotedName a -> a #

sum :: Num a => MaybePromotedName a -> a #

product :: Num a => MaybePromotedName a -> a #

Foldable Promoted 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Promoted m -> m #

foldMap :: Monoid m => (a -> m) -> Promoted a -> m #

foldr :: (a -> b -> b) -> b -> Promoted a -> b #

foldr' :: (a -> b -> b) -> b -> Promoted a -> b #

foldl :: (b -> a -> b) -> b -> Promoted a -> b #

foldl' :: (b -> a -> b) -> b -> Promoted a -> b #

foldr1 :: (a -> a -> a) -> Promoted a -> a #

foldl1 :: (a -> a -> a) -> Promoted a -> a #

toList :: Promoted a -> [a] #

null :: Promoted a -> Bool #

length :: Promoted a -> Int #

elem :: Eq a => a -> Promoted a -> Bool #

maximum :: Ord a => Promoted a -> a #

minimum :: Ord a => Promoted a -> a #

sum :: Num a => Promoted a -> a #

product :: Num a => Promoted a -> a #

Foldable TyVarBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => TyVarBind m -> m #

foldMap :: Monoid m => (a -> m) -> TyVarBind a -> m #

foldr :: (a -> b -> b) -> b -> TyVarBind a -> b #

foldr' :: (a -> b -> b) -> b -> TyVarBind a -> b #

foldl :: (b -> a -> b) -> b -> TyVarBind a -> b #

foldl' :: (b -> a -> b) -> b -> TyVarBind a -> b #

foldr1 :: (a -> a -> a) -> TyVarBind a -> a #

foldl1 :: (a -> a -> a) -> TyVarBind a -> a #

toList :: TyVarBind a -> [a] #

null :: TyVarBind a -> Bool #

length :: TyVarBind a -> Int #

elem :: Eq a => a -> TyVarBind a -> Bool #

maximum :: Ord a => TyVarBind a -> a #

minimum :: Ord a => TyVarBind a -> a #

sum :: Num a => TyVarBind a -> a #

product :: Num a => TyVarBind a -> a #

Foldable Kind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Kind m -> m #

foldMap :: Monoid m => (a -> m) -> Kind a -> m #

foldr :: (a -> b -> b) -> b -> Kind a -> b #

foldr' :: (a -> b -> b) -> b -> Kind a -> b #

foldl :: (b -> a -> b) -> b -> Kind a -> b #

foldl' :: (b -> a -> b) -> b -> Kind a -> b #

foldr1 :: (a -> a -> a) -> Kind a -> a #

foldl1 :: (a -> a -> a) -> Kind a -> a #

toList :: Kind a -> [a] #

null :: Kind a -> Bool #

length :: Kind a -> Int #

elem :: Eq a => a -> Kind a -> Bool #

maximum :: Ord a => Kind a -> a #

minimum :: Ord a => Kind a -> a #

sum :: Num a => Kind a -> a #

product :: Num a => Kind a -> a #

Foldable FunDep 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => FunDep m -> m #

foldMap :: Monoid m => (a -> m) -> FunDep a -> m #

foldr :: (a -> b -> b) -> b -> FunDep a -> b #

foldr' :: (a -> b -> b) -> b -> FunDep a -> b #

foldl :: (b -> a -> b) -> b -> FunDep a -> b #

foldl' :: (b -> a -> b) -> b -> FunDep a -> b #

foldr1 :: (a -> a -> a) -> FunDep a -> a #

foldl1 :: (a -> a -> a) -> FunDep a -> a #

toList :: FunDep a -> [a] #

null :: FunDep a -> Bool #

length :: FunDep a -> Int #

elem :: Eq a => a -> FunDep a -> Bool #

maximum :: Ord a => FunDep a -> a #

minimum :: Ord a => FunDep a -> a #

sum :: Num a => FunDep a -> a #

product :: Num a => FunDep a -> a #

Foldable Context 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Context m -> m #

foldMap :: Monoid m => (a -> m) -> Context a -> m #

foldr :: (a -> b -> b) -> b -> Context a -> b #

foldr' :: (a -> b -> b) -> b -> Context a -> b #

foldl :: (b -> a -> b) -> b -> Context a -> b #

foldl' :: (b -> a -> b) -> b -> Context a -> b #

foldr1 :: (a -> a -> a) -> Context a -> a #

foldl1 :: (a -> a -> a) -> Context a -> a #

toList :: Context a -> [a] #

null :: Context a -> Bool #

length :: Context a -> Int #

elem :: Eq a => a -> Context a -> Bool #

maximum :: Ord a => Context a -> a #

minimum :: Ord a => Context a -> a #

sum :: Num a => Context a -> a #

product :: Num a => Context a -> a #

Foldable Asst 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Asst m -> m #

foldMap :: Monoid m => (a -> m) -> Asst a -> m #

foldr :: (a -> b -> b) -> b -> Asst a -> b #

foldr' :: (a -> b -> b) -> b -> Asst a -> b #

foldl :: (b -> a -> b) -> b -> Asst a -> b #

foldl' :: (b -> a -> b) -> b -> Asst a -> b #

foldr1 :: (a -> a -> a) -> Asst a -> a #

foldl1 :: (a -> a -> a) -> Asst a -> a #

toList :: Asst a -> [a] #

null :: Asst a -> Bool #

length :: Asst a -> Int #

elem :: Eq a => a -> Asst a -> Bool #

maximum :: Ord a => Asst a -> a #

minimum :: Ord a => Asst a -> a #

sum :: Num a => Asst a -> a #

product :: Num a => Asst a -> a #

Foldable Literal 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Literal m -> m #

foldMap :: Monoid m => (a -> m) -> Literal a -> m #

foldr :: (a -> b -> b) -> b -> Literal a -> b #

foldr' :: (a -> b -> b) -> b -> Literal a -> b #

foldl :: (b -> a -> b) -> b -> Literal a -> b #

foldl' :: (b -> a -> b) -> b -> Literal a -> b #

foldr1 :: (a -> a -> a) -> Literal a -> a #

foldl1 :: (a -> a -> a) -> Literal a -> a #

toList :: Literal a -> [a] #

null :: Literal a -> Bool #

length :: Literal a -> Int #

elem :: Eq a => a -> Literal a -> Bool #

maximum :: Ord a => Literal a -> a #

minimum :: Ord a => Literal a -> a #

sum :: Num a => Literal a -> a #

product :: Num a => Literal a -> a #

Foldable Sign 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Sign m -> m #

foldMap :: Monoid m => (a -> m) -> Sign a -> m #

foldr :: (a -> b -> b) -> b -> Sign a -> b #

foldr' :: (a -> b -> b) -> b -> Sign a -> b #

foldl :: (b -> a -> b) -> b -> Sign a -> b #

foldl' :: (b -> a -> b) -> b -> Sign a -> b #

foldr1 :: (a -> a -> a) -> Sign a -> a #

foldl1 :: (a -> a -> a) -> Sign a -> a #

toList :: Sign a -> [a] #

null :: Sign a -> Bool #

length :: Sign a -> Int #

elem :: Eq a => a -> Sign a -> Bool #

maximum :: Ord a => Sign a -> a #

minimum :: Ord a => Sign a -> a #

sum :: Num a => Sign a -> a #

product :: Num a => Sign a -> a #

Foldable Exp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Exp m -> m #

foldMap :: Monoid m => (a -> m) -> Exp a -> m #

foldr :: (a -> b -> b) -> b -> Exp a -> b #

foldr' :: (a -> b -> b) -> b -> Exp a -> b #

foldl :: (b -> a -> b) -> b -> Exp a -> b #

foldl' :: (b -> a -> b) -> b -> Exp a -> b #

foldr1 :: (a -> a -> a) -> Exp a -> a #

foldl1 :: (a -> a -> a) -> Exp a -> a #

toList :: Exp a -> [a] #

null :: Exp a -> Bool #

length :: Exp a -> Int #

elem :: Eq a => a -> Exp a -> Bool #

maximum :: Ord a => Exp a -> a #

minimum :: Ord a => Exp a -> a #

sum :: Num a => Exp a -> a #

product :: Num a => Exp a -> a #

Foldable XName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => XName m -> m #

foldMap :: Monoid m => (a -> m) -> XName a -> m #

foldr :: (a -> b -> b) -> b -> XName a -> b #

foldr' :: (a -> b -> b) -> b -> XName a -> b #

foldl :: (b -> a -> b) -> b -> XName a -> b #

foldl' :: (b -> a -> b) -> b -> XName a -> b #

foldr1 :: (a -> a -> a) -> XName a -> a #

foldl1 :: (a -> a -> a) -> XName a -> a #

toList :: XName a -> [a] #

null :: XName a -> Bool #

length :: XName a -> Int #

elem :: Eq a => a -> XName a -> Bool #

maximum :: Ord a => XName a -> a #

minimum :: Ord a => XName a -> a #

sum :: Num a => XName a -> a #

product :: Num a => XName a -> a #

Foldable XAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => XAttr m -> m #

foldMap :: Monoid m => (a -> m) -> XAttr a -> m #

foldr :: (a -> b -> b) -> b -> XAttr a -> b #

foldr' :: (a -> b -> b) -> b -> XAttr a -> b #

foldl :: (b -> a -> b) -> b -> XAttr a -> b #

foldl' :: (b -> a -> b) -> b -> XAttr a -> b #

foldr1 :: (a -> a -> a) -> XAttr a -> a #

foldl1 :: (a -> a -> a) -> XAttr a -> a #

toList :: XAttr a -> [a] #

null :: XAttr a -> Bool #

length :: XAttr a -> Int #

elem :: Eq a => a -> XAttr a -> Bool #

maximum :: Ord a => XAttr a -> a #

minimum :: Ord a => XAttr a -> a #

sum :: Num a => XAttr a -> a #

product :: Num a => XAttr a -> a #

Foldable Bracket 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Bracket m -> m #

foldMap :: Monoid m => (a -> m) -> Bracket a -> m #

foldr :: (a -> b -> b) -> b -> Bracket a -> b #

foldr' :: (a -> b -> b) -> b -> Bracket a -> b #

foldl :: (b -> a -> b) -> b -> Bracket a -> b #

foldl' :: (b -> a -> b) -> b -> Bracket a -> b #

foldr1 :: (a -> a -> a) -> Bracket a -> a #

foldl1 :: (a -> a -> a) -> Bracket a -> a #

toList :: Bracket a -> [a] #

null :: Bracket a -> Bool #

length :: Bracket a -> Int #

elem :: Eq a => a -> Bracket a -> Bool #

maximum :: Ord a => Bracket a -> a #

minimum :: Ord a => Bracket a -> a #

sum :: Num a => Bracket a -> a #

product :: Num a => Bracket a -> a #

Foldable Splice 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Splice m -> m #

foldMap :: Monoid m => (a -> m) -> Splice a -> m #

foldr :: (a -> b -> b) -> b -> Splice a -> b #

foldr' :: (a -> b -> b) -> b -> Splice a -> b #

foldl :: (b -> a -> b) -> b -> Splice a -> b #

foldl' :: (b -> a -> b) -> b -> Splice a -> b #

foldr1 :: (a -> a -> a) -> Splice a -> a #

foldl1 :: (a -> a -> a) -> Splice a -> a #

toList :: Splice a -> [a] #

null :: Splice a -> Bool #

length :: Splice a -> Int #

elem :: Eq a => a -> Splice a -> Bool #

maximum :: Ord a => Splice a -> a #

minimum :: Ord a => Splice a -> a #

sum :: Num a => Splice a -> a #

product :: Num a => Splice a -> a #

Foldable Safety 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Safety m -> m #

foldMap :: Monoid m => (a -> m) -> Safety a -> m #

foldr :: (a -> b -> b) -> b -> Safety a -> b #

foldr' :: (a -> b -> b) -> b -> Safety a -> b #

foldl :: (b -> a -> b) -> b -> Safety a -> b #

foldl' :: (b -> a -> b) -> b -> Safety a -> b #

foldr1 :: (a -> a -> a) -> Safety a -> a #

foldl1 :: (a -> a -> a) -> Safety a -> a #

toList :: Safety a -> [a] #

null :: Safety a -> Bool #

length :: Safety a -> Int #

elem :: Eq a => a -> Safety a -> Bool #

maximum :: Ord a => Safety a -> a #

minimum :: Ord a => Safety a -> a #

sum :: Num a => Safety a -> a #

product :: Num a => Safety a -> a #

Foldable CallConv 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => CallConv m -> m #

foldMap :: Monoid m => (a -> m) -> CallConv a -> m #

foldr :: (a -> b -> b) -> b -> CallConv a -> b #

foldr' :: (a -> b -> b) -> b -> CallConv a -> b #

foldl :: (b -> a -> b) -> b -> CallConv a -> b #

foldl' :: (b -> a -> b) -> b -> CallConv a -> b #

foldr1 :: (a -> a -> a) -> CallConv a -> a #

foldl1 :: (a -> a -> a) -> CallConv a -> a #

toList :: CallConv a -> [a] #

null :: CallConv a -> Bool #

length :: CallConv a -> Int #

elem :: Eq a => a -> CallConv a -> Bool #

maximum :: Ord a => CallConv a -> a #

minimum :: Ord a => CallConv a -> a #

sum :: Num a => CallConv a -> a #

product :: Num a => CallConv a -> a #

Foldable ModulePragma 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => ModulePragma m -> m #

foldMap :: Monoid m => (a -> m) -> ModulePragma a -> m #

foldr :: (a -> b -> b) -> b -> ModulePragma a -> b #

foldr' :: (a -> b -> b) -> b -> ModulePragma a -> b #

foldl :: (b -> a -> b) -> b -> ModulePragma a -> b #

foldl' :: (b -> a -> b) -> b -> ModulePragma a -> b #

foldr1 :: (a -> a -> a) -> ModulePragma a -> a #

foldl1 :: (a -> a -> a) -> ModulePragma a -> a #

toList :: ModulePragma a -> [a] #

null :: ModulePragma a -> Bool #

length :: ModulePragma a -> Int #

elem :: Eq a => a -> ModulePragma a -> Bool #

maximum :: Ord a => ModulePragma a -> a #

minimum :: Ord a => ModulePragma a -> a #

sum :: Num a => ModulePragma a -> a #

product :: Num a => ModulePragma a -> a #

Foldable Overlap 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Overlap m -> m #

foldMap :: Monoid m => (a -> m) -> Overlap a -> m #

foldr :: (a -> b -> b) -> b -> Overlap a -> b #

foldr' :: (a -> b -> b) -> b -> Overlap a -> b #

foldl :: (b -> a -> b) -> b -> Overlap a -> b #

foldl' :: (b -> a -> b) -> b -> Overlap a -> b #

foldr1 :: (a -> a -> a) -> Overlap a -> a #

foldl1 :: (a -> a -> a) -> Overlap a -> a #

toList :: Overlap a -> [a] #

null :: Overlap a -> Bool #

length :: Overlap a -> Int #

elem :: Eq a => a -> Overlap a -> Bool #

maximum :: Ord a => Overlap a -> a #

minimum :: Ord a => Overlap a -> a #

sum :: Num a => Overlap a -> a #

product :: Num a => Overlap a -> a #

Foldable Activation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Activation m -> m #

foldMap :: Monoid m => (a -> m) -> Activation a -> m #

foldr :: (a -> b -> b) -> b -> Activation a -> b #

foldr' :: (a -> b -> b) -> b -> Activation a -> b #

foldl :: (b -> a -> b) -> b -> Activation a -> b #

foldl' :: (b -> a -> b) -> b -> Activation a -> b #

foldr1 :: (a -> a -> a) -> Activation a -> a #

foldl1 :: (a -> a -> a) -> Activation a -> a #

toList :: Activation a -> [a] #

null :: Activation a -> Bool #

length :: Activation a -> Int #

elem :: Eq a => a -> Activation a -> Bool #

maximum :: Ord a => Activation a -> a #

minimum :: Ord a => Activation a -> a #

sum :: Num a => Activation a -> a #

product :: Num a => Activation a -> a #

Foldable Rule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Rule m -> m #

foldMap :: Monoid m => (a -> m) -> Rule a -> m #

foldr :: (a -> b -> b) -> b -> Rule a -> b #

foldr' :: (a -> b -> b) -> b -> Rule a -> b #

foldl :: (b -> a -> b) -> b -> Rule a -> b #

foldl' :: (b -> a -> b) -> b -> Rule a -> b #

foldr1 :: (a -> a -> a) -> Rule a -> a #

foldl1 :: (a -> a -> a) -> Rule a -> a #

toList :: Rule a -> [a] #

null :: Rule a -> Bool #

length :: Rule a -> Int #

elem :: Eq a => a -> Rule a -> Bool #

maximum :: Ord a => Rule a -> a #

minimum :: Ord a => Rule a -> a #

sum :: Num a => Rule a -> a #

product :: Num a => Rule a -> a #

Foldable RuleVar 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => RuleVar m -> m #

foldMap :: Monoid m => (a -> m) -> RuleVar a -> m #

foldr :: (a -> b -> b) -> b -> RuleVar a -> b #

foldr' :: (a -> b -> b) -> b -> RuleVar a -> b #

foldl :: (b -> a -> b) -> b -> RuleVar a -> b #

foldl' :: (b -> a -> b) -> b -> RuleVar a -> b #

foldr1 :: (a -> a -> a) -> RuleVar a -> a #

foldl1 :: (a -> a -> a) -> RuleVar a -> a #

toList :: RuleVar a -> [a] #

null :: RuleVar a -> Bool #

length :: RuleVar a -> Int #

elem :: Eq a => a -> RuleVar a -> Bool #

maximum :: Ord a => RuleVar a -> a #

minimum :: Ord a => RuleVar a -> a #

sum :: Num a => RuleVar a -> a #

product :: Num a => RuleVar a -> a #

Foldable WarningText 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => WarningText m -> m #

foldMap :: Monoid m => (a -> m) -> WarningText a -> m #

foldr :: (a -> b -> b) -> b -> WarningText a -> b #

foldr' :: (a -> b -> b) -> b -> WarningText a -> b #

foldl :: (b -> a -> b) -> b -> WarningText a -> b #

foldl' :: (b -> a -> b) -> b -> WarningText a -> b #

foldr1 :: (a -> a -> a) -> WarningText a -> a #

foldl1 :: (a -> a -> a) -> WarningText a -> a #

toList :: WarningText a -> [a] #

null :: WarningText a -> Bool #

length :: WarningText a -> Int #

elem :: Eq a => a -> WarningText a -> Bool #

maximum :: Ord a => WarningText a -> a #

minimum :: Ord a => WarningText a -> a #

sum :: Num a => WarningText a -> a #

product :: Num a => WarningText a -> a #

Foldable Pat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Pat m -> m #

foldMap :: Monoid m => (a -> m) -> Pat a -> m #

foldr :: (a -> b -> b) -> b -> Pat a -> b #

foldr' :: (a -> b -> b) -> b -> Pat a -> b #

foldl :: (b -> a -> b) -> b -> Pat a -> b #

foldl' :: (b -> a -> b) -> b -> Pat a -> b #

foldr1 :: (a -> a -> a) -> Pat a -> a #

foldl1 :: (a -> a -> a) -> Pat a -> a #

toList :: Pat a -> [a] #

null :: Pat a -> Bool #

length :: Pat a -> Int #

elem :: Eq a => a -> Pat a -> Bool #

maximum :: Ord a => Pat a -> a #

minimum :: Ord a => Pat a -> a #

sum :: Num a => Pat a -> a #

product :: Num a => Pat a -> a #

Foldable PXAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => PXAttr m -> m #

foldMap :: Monoid m => (a -> m) -> PXAttr a -> m #

foldr :: (a -> b -> b) -> b -> PXAttr a -> b #

foldr' :: (a -> b -> b) -> b -> PXAttr a -> b #

foldl :: (b -> a -> b) -> b -> PXAttr a -> b #

foldl' :: (b -> a -> b) -> b -> PXAttr a -> b #

foldr1 :: (a -> a -> a) -> PXAttr a -> a #

foldl1 :: (a -> a -> a) -> PXAttr a -> a #

toList :: PXAttr a -> [a] #

null :: PXAttr a -> Bool #

length :: PXAttr a -> Int #

elem :: Eq a => a -> PXAttr a -> Bool #

maximum :: Ord a => PXAttr a -> a #

minimum :: Ord a => PXAttr a -> a #

sum :: Num a => PXAttr a -> a #

product :: Num a => PXAttr a -> a #

Foldable RPatOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => RPatOp m -> m #

foldMap :: Monoid m => (a -> m) -> RPatOp a -> m #

foldr :: (a -> b -> b) -> b -> RPatOp a -> b #

foldr' :: (a -> b -> b) -> b -> RPatOp a -> b #

foldl :: (b -> a -> b) -> b -> RPatOp a -> b #

foldl' :: (b -> a -> b) -> b -> RPatOp a -> b #

foldr1 :: (a -> a -> a) -> RPatOp a -> a #

foldl1 :: (a -> a -> a) -> RPatOp a -> a #

toList :: RPatOp a -> [a] #

null :: RPatOp a -> Bool #

length :: RPatOp a -> Int #

elem :: Eq a => a -> RPatOp a -> Bool #

maximum :: Ord a => RPatOp a -> a #

minimum :: Ord a => RPatOp a -> a #

sum :: Num a => RPatOp a -> a #

product :: Num a => RPatOp a -> a #

Foldable RPat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => RPat m -> m #

foldMap :: Monoid m => (a -> m) -> RPat a -> m #

foldr :: (a -> b -> b) -> b -> RPat a -> b #

foldr' :: (a -> b -> b) -> b -> RPat a -> b #

foldl :: (b -> a -> b) -> b -> RPat a -> b #

foldl' :: (b -> a -> b) -> b -> RPat a -> b #

foldr1 :: (a -> a -> a) -> RPat a -> a #

foldl1 :: (a -> a -> a) -> RPat a -> a #

toList :: RPat a -> [a] #

null :: RPat a -> Bool #

length :: RPat a -> Int #

elem :: Eq a => a -> RPat a -> Bool #

maximum :: Ord a => RPat a -> a #

minimum :: Ord a => RPat a -> a #

sum :: Num a => RPat a -> a #

product :: Num a => RPat a -> a #

Foldable PatField 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => PatField m -> m #

foldMap :: Monoid m => (a -> m) -> PatField a -> m #

foldr :: (a -> b -> b) -> b -> PatField a -> b #

foldr' :: (a -> b -> b) -> b -> PatField a -> b #

foldl :: (b -> a -> b) -> b -> PatField a -> b #

foldl' :: (b -> a -> b) -> b -> PatField a -> b #

foldr1 :: (a -> a -> a) -> PatField a -> a #

foldl1 :: (a -> a -> a) -> PatField a -> a #

toList :: PatField a -> [a] #

null :: PatField a -> Bool #

length :: PatField a -> Int #

elem :: Eq a => a -> PatField a -> Bool #

maximum :: Ord a => PatField a -> a #

minimum :: Ord a => PatField a -> a #

sum :: Num a => PatField a -> a #

product :: Num a => PatField a -> a #

Foldable Stmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Stmt m -> m #

foldMap :: Monoid m => (a -> m) -> Stmt a -> m #

foldr :: (a -> b -> b) -> b -> Stmt a -> b #

foldr' :: (a -> b -> b) -> b -> Stmt a -> b #

foldl :: (b -> a -> b) -> b -> Stmt a -> b #

foldl' :: (b -> a -> b) -> b -> Stmt a -> b #

foldr1 :: (a -> a -> a) -> Stmt a -> a #

foldl1 :: (a -> a -> a) -> Stmt a -> a #

toList :: Stmt a -> [a] #

null :: Stmt a -> Bool #

length :: Stmt a -> Int #

elem :: Eq a => a -> Stmt a -> Bool #

maximum :: Ord a => Stmt a -> a #

minimum :: Ord a => Stmt a -> a #

sum :: Num a => Stmt a -> a #

product :: Num a => Stmt a -> a #

Foldable QualStmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => QualStmt m -> m #

foldMap :: Monoid m => (a -> m) -> QualStmt a -> m #

foldr :: (a -> b -> b) -> b -> QualStmt a -> b #

foldr' :: (a -> b -> b) -> b -> QualStmt a -> b #

foldl :: (b -> a -> b) -> b -> QualStmt a -> b #

foldl' :: (b -> a -> b) -> b -> QualStmt a -> b #

foldr1 :: (a -> a -> a) -> QualStmt a -> a #

foldl1 :: (a -> a -> a) -> QualStmt a -> a #

toList :: QualStmt a -> [a] #

null :: QualStmt a -> Bool #

length :: QualStmt a -> Int #

elem :: Eq a => a -> QualStmt a -> Bool #

maximum :: Ord a => QualStmt a -> a #

minimum :: Ord a => QualStmt a -> a #

sum :: Num a => QualStmt a -> a #

product :: Num a => QualStmt a -> a #

Foldable FieldUpdate 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => FieldUpdate m -> m #

foldMap :: Monoid m => (a -> m) -> FieldUpdate a -> m #

foldr :: (a -> b -> b) -> b -> FieldUpdate a -> b #

foldr' :: (a -> b -> b) -> b -> FieldUpdate a -> b #

foldl :: (b -> a -> b) -> b -> FieldUpdate a -> b #

foldl' :: (b -> a -> b) -> b -> FieldUpdate a -> b #

foldr1 :: (a -> a -> a) -> FieldUpdate a -> a #

foldl1 :: (a -> a -> a) -> FieldUpdate a -> a #

toList :: FieldUpdate a -> [a] #

null :: FieldUpdate a -> Bool #

length :: FieldUpdate a -> Int #

elem :: Eq a => a -> FieldUpdate a -> Bool #

maximum :: Ord a => FieldUpdate a -> a #

minimum :: Ord a => FieldUpdate a -> a #

sum :: Num a => FieldUpdate a -> a #

product :: Num a => FieldUpdate a -> a #

Foldable Alt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

fold :: Monoid m => Alt m -> m #

foldMap :: Monoid m => (a -> m) -> Alt a -> m #

foldr :: (a -> b -> b) -> b -> Alt a -> b #

foldr' :: (a -> b -> b) -> b -> Alt a -> b #

foldl :: (b -> a -> b) -> b -> Alt a -> b #

foldl' :: (b -> a -> b) -> b -> Alt a -> b #

foldr1 :: (a -> a -> a) -> Alt a -> a #

foldl1 :: (a -> a -> a) -> Alt a -> a #

toList :: Alt a -> [a] #

null :: Alt a -> Bool #

length :: Alt a -> Int #

elem :: Eq a => a -> Alt a -> Bool #

maximum :: Ord a => Alt a -> a #

minimum :: Ord a => Alt a -> a #

sum :: Num a => Alt a -> a #

product :: Num a => Alt a -> a #

Foldable List 
Instance details

Defined in Data.Aeson.Config.Types

Methods

fold :: Monoid m => List m -> m #

foldMap :: Monoid m => (a -> m) -> List a -> m #

foldr :: (a -> b -> b) -> b -> List a -> b #

foldr' :: (a -> b -> b) -> b -> List a -> b #

foldl :: (b -> a -> b) -> b -> List a -> b #

foldl' :: (b -> a -> b) -> b -> List a -> b #

foldr1 :: (a -> a -> a) -> List a -> a #

foldl1 :: (a -> a -> a) -> List a -> a #

toList :: List a -> [a] #

null :: List a -> Bool #

length :: List a -> Int #

elem :: Eq a => a -> List a -> Bool #

maximum :: Ord a => List a -> a #

minimum :: Ord a => List a -> a #

sum :: Num a => List a -> a #

product :: Num a => List a -> a #

Foldable Section 
Instance details

Defined in Hpack.Config

Methods

fold :: Monoid m => Section m -> m #

foldMap :: Monoid m => (a -> m) -> Section a -> m #

foldr :: (a -> b -> b) -> b -> Section a -> b #

foldr' :: (a -> b -> b) -> b -> Section a -> b #

foldl :: (b -> a -> b) -> b -> Section a -> b #

foldl' :: (b -> a -> b) -> b -> Section a -> b #

foldr1 :: (a -> a -> a) -> Section a -> a #

foldl1 :: (a -> a -> a) -> Section a -> a #

toList :: Section a -> [a] #

null :: Section a -> Bool #

length :: Section a -> Int #

elem :: Eq a => a -> Section a -> Bool #

maximum :: Ord a => Section a -> a #

minimum :: Ord a => Section a -> a #

sum :: Num a => Section a -> a #

product :: Num a => Section a -> a #

Foldable Conditional 
Instance details

Defined in Hpack.Config

Methods

fold :: Monoid m => Conditional m -> m #

foldMap :: Monoid m => (a -> m) -> Conditional a -> m #

foldr :: (a -> b -> b) -> b -> Conditional a -> b #

foldr' :: (a -> b -> b) -> b -> Conditional a -> b #

foldl :: (b -> a -> b) -> b -> Conditional a -> b #

foldl' :: (b -> a -> b) -> b -> Conditional a -> b #

foldr1 :: (a -> a -> a) -> Conditional a -> a #

foldl1 :: (a -> a -> a) -> Conditional a -> a #

toList :: Conditional a -> [a] #

null :: Conditional a -> Bool #

length :: Conditional a -> Int #

elem :: Eq a => a -> Conditional a -> Bool #

maximum :: Ord a => Conditional a -> a #

minimum :: Ord a => Conditional a -> a #

sum :: Num a => Conditional a -> a #

product :: Num a => Conditional a -> a #

Foldable HistoriedResponse 
Instance details

Defined in Network.HTTP.Client

Methods

fold :: Monoid m => HistoriedResponse m -> m #

foldMap :: Monoid m => (a -> m) -> HistoriedResponse a -> m #

foldr :: (a -> b -> b) -> b -> HistoriedResponse a -> b #

foldr' :: (a -> b -> b) -> b -> HistoriedResponse a -> b #

foldl :: (b -> a -> b) -> b -> HistoriedResponse a -> b #

foldl' :: (b -> a -> b) -> b -> HistoriedResponse a -> b #

foldr1 :: (a -> a -> a) -> HistoriedResponse a -> a #

foldl1 :: (a -> a -> a) -> HistoriedResponse a -> a #

toList :: HistoriedResponse a -> [a] #

null :: HistoriedResponse a -> Bool #

length :: HistoriedResponse a -> Int #

elem :: Eq a => a -> HistoriedResponse a -> Bool #

maximum :: Ord a => HistoriedResponse a -> a #

minimum :: Ord a => HistoriedResponse a -> a #

sum :: Num a => HistoriedResponse a -> a #

product :: Num a => HistoriedResponse a -> a #

Foldable Response 
Instance details

Defined in Network.HTTP.Client.Types

Methods

fold :: Monoid m => Response m -> m #

foldMap :: Monoid m => (a -> m) -> Response a -> m #

foldr :: (a -> b -> b) -> b -> Response a -> b #

foldr' :: (a -> b -> b) -> b -> Response a -> b #

foldl :: (b -> a -> b) -> b -> Response a -> b #

foldl' :: (b -> a -> b) -> b -> Response a -> b #

foldr1 :: (a -> a -> a) -> Response a -> a #

foldl1 :: (a -> a -> a) -> Response a -> a #

toList :: Response a -> [a] #

null :: Response a -> Bool #

length :: Response a -> Int #

elem :: Eq a => a -> Response a -> Bool #

maximum :: Ord a => Response a -> a #

minimum :: Ord a => Response a -> a #

sum :: Num a => Response a -> a #

product :: Num a => Response a -> a #

Foldable HashSet 
Instance details

Defined in Data.HashSet

Methods

fold :: Monoid m => HashSet m -> m #

foldMap :: Monoid m => (a -> m) -> HashSet a -> m #

foldr :: (a -> b -> b) -> b -> HashSet a -> b #

foldr' :: (a -> b -> b) -> b -> HashSet a -> b #

foldl :: (b -> a -> b) -> b -> HashSet a -> b #

foldl' :: (b -> a -> b) -> b -> HashSet a -> b #

foldr1 :: (a -> a -> a) -> HashSet a -> a #

foldl1 :: (a -> a -> a) -> HashSet a -> a #

toList :: HashSet a -> [a] #

null :: HashSet a -> Bool #

length :: HashSet a -> Int #

elem :: Eq a => a -> HashSet a -> Bool #

maximum :: Ord a => HashSet a -> a #

minimum :: Ord a => HashSet a -> a #

sum :: Num a => HashSet a -> a #

product :: Num a => HashSet a -> a #

Foldable Vector 
Instance details

Defined in Data.Vector

Methods

fold :: Monoid m => Vector m -> m #

foldMap :: Monoid m => (a -> m) -> Vector a -> m #

foldr :: (a -> b -> b) -> b -> Vector a -> b #

foldr' :: (a -> b -> b) -> b -> Vector a -> b #

foldl :: (b -> a -> b) -> b -> Vector a -> b #

foldl' :: (b -> a -> b) -> b -> Vector a -> b #

foldr1 :: (a -> a -> a) -> Vector a -> a #

foldl1 :: (a -> a -> a) -> Vector a -> a #

toList :: Vector a -> [a] #

null :: Vector a -> Bool #

length :: Vector a -> Int #

elem :: Eq a => a -> Vector a -> Bool #

maximum :: Ord a => Vector a -> a #

minimum :: Ord a => Vector a -> a #

sum :: Num a => Vector a -> a #

product :: Num a => Vector a -> a #

Foldable PointedList 
Instance details

Defined in Data.List.PointedList

Methods

fold :: Monoid m => PointedList m -> m #

foldMap :: Monoid m => (a -> m) -> PointedList a -> m #

foldr :: (a -> b -> b) -> b -> PointedList a -> b #

foldr' :: (a -> b -> b) -> b -> PointedList a -> b #

foldl :: (b -> a -> b) -> b -> PointedList a -> b #

foldl' :: (b -> a -> b) -> b -> PointedList a -> b #

foldr1 :: (a -> a -> a) -> PointedList a -> a #

foldl1 :: (a -> a -> a) -> PointedList a -> a #

toList :: PointedList a -> [a] #

null :: PointedList a -> Bool #

length :: PointedList a -> Int #

elem :: Eq a => a -> PointedList a -> Bool #

maximum :: Ord a => PointedList a -> a #

minimum :: Ord a => PointedList a -> a #

sum :: Num a => PointedList a -> a #

product :: Num a => PointedList a -> a #

Foldable SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Methods

fold :: Monoid m => SmallArray m -> m #

foldMap :: Monoid m => (a -> m) -> SmallArray a -> m #

foldr :: (a -> b -> b) -> b -> SmallArray a -> b #

foldr' :: (a -> b -> b) -> b -> SmallArray a -> b #

foldl :: (b -> a -> b) -> b -> SmallArray a -> b #

foldl' :: (b -> a -> b) -> b -> SmallArray a -> b #

foldr1 :: (a -> a -> a) -> SmallArray a -> a #

foldl1 :: (a -> a -> a) -> SmallArray a -> a #

toList :: SmallArray a -> [a] #

null :: SmallArray a -> Bool #

length :: SmallArray a -> Int #

elem :: Eq a => a -> SmallArray a -> Bool #

maximum :: Ord a => SmallArray a -> a #

minimum :: Ord a => SmallArray a -> a #

sum :: Num a => SmallArray a -> a #

product :: Num a => SmallArray a -> a #

Foldable Array 
Instance details

Defined in Data.Primitive.Array

Methods

fold :: Monoid m => Array m -> m #

foldMap :: Monoid m => (a -> m) -> Array a -> m #

foldr :: (a -> b -> b) -> b -> Array a -> b #

foldr' :: (a -> b -> b) -> b -> Array a -> b #

foldl :: (b -> a -> b) -> b -> Array a -> b #

foldl' :: (b -> a -> b) -> b -> Array a -> b #

foldr1 :: (a -> a -> a) -> Array a -> a #

foldl1 :: (a -> a -> a) -> Array a -> a #

toList :: Array a -> [a] #

null :: Array a -> Bool #

length :: Array a -> Int #

elem :: Eq a => a -> Array a -> Bool #

maximum :: Ord a => Array a -> a #

minimum :: Ord a => Array a -> a #

sum :: Num a => Array a -> a #

product :: Num a => Array a -> a #

Foldable (Either a)

Since: base-4.7.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Either a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Either a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Either a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Either a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Either a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Either a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Either a a0 -> a0 #

toList :: Either a a0 -> [a0] #

null :: Either a a0 -> Bool #

length :: Either a a0 -> Int #

elem :: Eq a0 => a0 -> Either a a0 -> Bool #

maximum :: Ord a0 => Either a a0 -> a0 #

minimum :: Ord a0 => Either a a0 -> a0 #

sum :: Num a0 => Either a a0 -> a0 #

product :: Num a0 => Either a a0 -> a0 #

Foldable (V1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => V1 m -> m #

foldMap :: Monoid m => (a -> m) -> V1 a -> m #

foldr :: (a -> b -> b) -> b -> V1 a -> b #

foldr' :: (a -> b -> b) -> b -> V1 a -> b #

foldl :: (b -> a -> b) -> b -> V1 a -> b #

foldl' :: (b -> a -> b) -> b -> V1 a -> b #

foldr1 :: (a -> a -> a) -> V1 a -> a #

foldl1 :: (a -> a -> a) -> V1 a -> a #

toList :: V1 a -> [a] #

null :: V1 a -> Bool #

length :: V1 a -> Int #

elem :: Eq a => a -> V1 a -> Bool #

maximum :: Ord a => V1 a -> a #

minimum :: Ord a => V1 a -> a #

sum :: Num a => V1 a -> a #

product :: Num a => V1 a -> a #

Foldable (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => U1 m -> m #

foldMap :: Monoid m => (a -> m) -> U1 a -> m #

foldr :: (a -> b -> b) -> b -> U1 a -> b #

foldr' :: (a -> b -> b) -> b -> U1 a -> b #

foldl :: (b -> a -> b) -> b -> U1 a -> b #

foldl' :: (b -> a -> b) -> b -> U1 a -> b #

foldr1 :: (a -> a -> a) -> U1 a -> a #

foldl1 :: (a -> a -> a) -> U1 a -> a #

toList :: U1 a -> [a] #

null :: U1 a -> Bool #

length :: U1 a -> Int #

elem :: Eq a => a -> U1 a -> Bool #

maximum :: Ord a => U1 a -> a #

minimum :: Ord a => U1 a -> a #

sum :: Num a => U1 a -> a #

product :: Num a => U1 a -> a #

Foldable ((,) a)

Since: base-4.7.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => (a, m) -> m #

foldMap :: Monoid m => (a0 -> m) -> (a, a0) -> m #

foldr :: (a0 -> b -> b) -> b -> (a, a0) -> b #

foldr' :: (a0 -> b -> b) -> b -> (a, a0) -> b #

foldl :: (b -> a0 -> b) -> b -> (a, a0) -> b #

foldl' :: (b -> a0 -> b) -> b -> (a, a0) -> b #

foldr1 :: (a0 -> a0 -> a0) -> (a, a0) -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> (a, a0) -> a0 #

toList :: (a, a0) -> [a0] #

null :: (a, a0) -> Bool #

length :: (a, a0) -> Int #

elem :: Eq a0 => a0 -> (a, a0) -> Bool #

maximum :: Ord a0 => (a, a0) -> a0 #

minimum :: Ord a0 => (a, a0) -> a0 #

sum :: Num a0 => (a, a0) -> a0 #

product :: Num a0 => (a, a0) -> a0 #

Foldable (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

fold :: Monoid m => Map k m -> m #

foldMap :: Monoid m => (a -> m) -> Map k a -> m #

foldr :: (a -> b -> b) -> b -> Map k a -> b #

foldr' :: (a -> b -> b) -> b -> Map k a -> b #

foldl :: (b -> a -> b) -> b -> Map k a -> b #

foldl' :: (b -> a -> b) -> b -> Map k a -> b #

foldr1 :: (a -> a -> a) -> Map k a -> a #

foldl1 :: (a -> a -> a) -> Map k a -> a #

toList :: Map k a -> [a] #

null :: Map k a -> Bool #

length :: Map k a -> Int #

elem :: Eq a => a -> Map k a -> Bool #

maximum :: Ord a => Map k a -> a #

minimum :: Ord a => Map k a -> a #

sum :: Num a => Map k a -> a #

product :: Num a => Map k a -> a #

Foldable (HashMap k) 
Instance details

Defined in Data.HashMap.Base

Methods

fold :: Monoid m => HashMap k m -> m #

foldMap :: Monoid m => (a -> m) -> HashMap k a -> m #

foldr :: (a -> b -> b) -> b -> HashMap k a -> b #

foldr' :: (a -> b -> b) -> b -> HashMap k a -> b #

foldl :: (b -> a -> b) -> b -> HashMap k a -> b #

foldl' :: (b -> a -> b) -> b -> HashMap k a -> b #

foldr1 :: (a -> a -> a) -> HashMap k a -> a #

foldl1 :: (a -> a -> a) -> HashMap k a -> a #

toList :: HashMap k a -> [a] #

null :: HashMap k a -> Bool #

length :: HashMap k a -> Int #

elem :: Eq a => a -> HashMap k a -> Bool #

maximum :: Ord a => HashMap k a -> a #

minimum :: Ord a => HashMap k a -> a #

sum :: Num a => HashMap k a -> a #

product :: Num a => HashMap k a -> a #

Foldable (Array i)

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Array i m -> m #

foldMap :: Monoid m => (a -> m) -> Array i a -> m #

foldr :: (a -> b -> b) -> b -> Array i a -> b #

foldr' :: (a -> b -> b) -> b -> Array i a -> b #

foldl :: (b -> a -> b) -> b -> Array i a -> b #

foldl' :: (b -> a -> b) -> b -> Array i a -> b #

foldr1 :: (a -> a -> a) -> Array i a -> a #

foldl1 :: (a -> a -> a) -> Array i a -> a #

toList :: Array i a -> [a] #

null :: Array i a -> Bool #

length :: Array i a -> Int #

elem :: Eq a => a -> Array i a -> Bool #

maximum :: Ord a => Array i a -> a #

minimum :: Ord a => Array i a -> a #

sum :: Num a => Array i a -> a #

product :: Num a => Array i a -> a #

Foldable (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Arg a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Arg a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Arg a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Arg a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Arg a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Arg a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Arg a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Arg a a0 -> a0 #

toList :: Arg a a0 -> [a0] #

null :: Arg a a0 -> Bool #

length :: Arg a a0 -> Int #

elem :: Eq a0 => a0 -> Arg a a0 -> Bool #

maximum :: Ord a0 => Arg a a0 -> a0 #

minimum :: Ord a0 => Arg a a0 -> a0 #

sum :: Num a0 => Arg a a0 -> a0 #

product :: Num a0 => Arg a a0 -> a0 #

Foldable (Proxy :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Proxy m -> m #

foldMap :: Monoid m => (a -> m) -> Proxy a -> m #

foldr :: (a -> b -> b) -> b -> Proxy a -> b #

foldr' :: (a -> b -> b) -> b -> Proxy a -> b #

foldl :: (b -> a -> b) -> b -> Proxy a -> b #

foldl' :: (b -> a -> b) -> b -> Proxy a -> b #

foldr1 :: (a -> a -> a) -> Proxy a -> a #

foldl1 :: (a -> a -> a) -> Proxy a -> a #

toList :: Proxy a -> [a] #

null :: Proxy a -> Bool #

length :: Proxy a -> Int #

elem :: Eq a => a -> Proxy a -> Bool #

maximum :: Ord a => Proxy a -> a #

minimum :: Ord a => Proxy a -> a #

sum :: Num a => Proxy a -> a #

product :: Num a => Proxy a -> a #

Foldable (Product a) 
Instance details

Defined in Data.Aeson.Config.Types

Methods

fold :: Monoid m => Product a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Product a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Product a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Product a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Product a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Product a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Product a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Product a a0 -> a0 #

toList :: Product a a0 -> [a0] #

null :: Product a a0 -> Bool #

length :: Product a a0 -> Int #

elem :: Eq a0 => a0 -> Product a a0 -> Bool #

maximum :: Ord a0 => Product a a0 -> a0 #

minimum :: Ord a0 => Product a a0 -> a0 #

sum :: Num a0 => Product a a0 -> a0 #

product :: Num a0 => Product a a0 -> a0 #

Foldable f => Foldable (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Rec1 f m -> m #

foldMap :: Monoid m => (a -> m) -> Rec1 f a -> m #

foldr :: (a -> b -> b) -> b -> Rec1 f a -> b #

foldr' :: (a -> b -> b) -> b -> Rec1 f a -> b #

foldl :: (b -> a -> b) -> b -> Rec1 f a -> b #

foldl' :: (b -> a -> b) -> b -> Rec1 f a -> b #

foldr1 :: (a -> a -> a) -> Rec1 f a -> a #

foldl1 :: (a -> a -> a) -> Rec1 f a -> a #

toList :: Rec1 f a -> [a] #

null :: Rec1 f a -> Bool #

length :: Rec1 f a -> Int #

elem :: Eq a => a -> Rec1 f a -> Bool #

maximum :: Ord a => Rec1 f a -> a #

minimum :: Ord a => Rec1 f a -> a #

sum :: Num a => Rec1 f a -> a #

product :: Num a => Rec1 f a -> a #

Foldable (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Char m -> m #

foldMap :: Monoid m => (a -> m) -> URec Char a -> m #

foldr :: (a -> b -> b) -> b -> URec Char a -> b #

foldr' :: (a -> b -> b) -> b -> URec Char a -> b #

foldl :: (b -> a -> b) -> b -> URec Char a -> b #

foldl' :: (b -> a -> b) -> b -> URec Char a -> b #

foldr1 :: (a -> a -> a) -> URec Char a -> a #

foldl1 :: (a -> a -> a) -> URec Char a -> a #

toList :: URec Char a -> [a] #

null :: URec Char a -> Bool #

length :: URec Char a -> Int #

elem :: Eq a => a -> URec Char a -> Bool #

maximum :: Ord a => URec Char a -> a #

minimum :: Ord a => URec Char a -> a #

sum :: Num a => URec Char a -> a #

product :: Num a => URec Char a -> a #

Foldable (URec Double :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Double m -> m #

foldMap :: Monoid m => (a -> m) -> URec Double a -> m #

foldr :: (a -> b -> b) -> b -> URec Double a -> b #

foldr' :: (a -> b -> b) -> b -> URec Double a -> b #

foldl :: (b -> a -> b) -> b -> URec Double a -> b #

foldl' :: (b -> a -> b) -> b -> URec Double a -> b #

foldr1 :: (a -> a -> a) -> URec Double a -> a #

foldl1 :: (a -> a -> a) -> URec Double a -> a #

toList :: URec Double a -> [a] #

null :: URec Double a -> Bool #

length :: URec Double a -> Int #

elem :: Eq a => a -> URec Double a -> Bool #

maximum :: Ord a => URec Double a -> a #

minimum :: Ord a => URec Double a -> a #

sum :: Num a => URec Double a -> a #

product :: Num a => URec Double a -> a #

Foldable (URec Float :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Float m -> m #

foldMap :: Monoid m => (a -> m) -> URec Float a -> m #

foldr :: (a -> b -> b) -> b -> URec Float a -> b #

foldr' :: (a -> b -> b) -> b -> URec Float a -> b #

foldl :: (b -> a -> b) -> b -> URec Float a -> b #

foldl' :: (b -> a -> b) -> b -> URec Float a -> b #

foldr1 :: (a -> a -> a) -> URec Float a -> a #

foldl1 :: (a -> a -> a) -> URec Float a -> a #

toList :: URec Float a -> [a] #

null :: URec Float a -> Bool #

length :: URec Float a -> Int #

elem :: Eq a => a -> URec Float a -> Bool #

maximum :: Ord a => URec Float a -> a #

minimum :: Ord a => URec Float a -> a #

sum :: Num a => URec Float a -> a #

product :: Num a => URec Float a -> a #

Foldable (URec Int :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Int m -> m #

foldMap :: Monoid m => (a -> m) -> URec Int a -> m #

foldr :: (a -> b -> b) -> b -> URec Int a -> b #

foldr' :: (a -> b -> b) -> b -> URec Int a -> b #

foldl :: (b -> a -> b) -> b -> URec Int a -> b #

foldl' :: (b -> a -> b) -> b -> URec Int a -> b #

foldr1 :: (a -> a -> a) -> URec Int a -> a #

foldl1 :: (a -> a -> a) -> URec Int a -> a #

toList :: URec Int a -> [a] #

null :: URec Int a -> Bool #

length :: URec Int a -> Int #

elem :: Eq a => a -> URec Int a -> Bool #

maximum :: Ord a => URec Int a -> a #

minimum :: Ord a => URec Int a -> a #

sum :: Num a => URec Int a -> a #

product :: Num a => URec Int a -> a #

Foldable (URec Word :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Word m -> m #

foldMap :: Monoid m => (a -> m) -> URec Word a -> m #

foldr :: (a -> b -> b) -> b -> URec Word a -> b #

foldr' :: (a -> b -> b) -> b -> URec Word a -> b #

foldl :: (b -> a -> b) -> b -> URec Word a -> b #

foldl' :: (b -> a -> b) -> b -> URec Word a -> b #

foldr1 :: (a -> a -> a) -> URec Word a -> a #

foldl1 :: (a -> a -> a) -> URec Word a -> a #

toList :: URec Word a -> [a] #

null :: URec Word a -> Bool #

length :: URec Word a -> Int #

elem :: Eq a => a -> URec Word a -> Bool #

maximum :: Ord a => URec Word a -> a #

minimum :: Ord a => URec Word a -> a #

sum :: Num a => URec Word a -> a #

product :: Num a => URec Word a -> a #

Foldable (URec (Ptr ()) :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec (Ptr ()) m -> m #

foldMap :: Monoid m => (a -> m) -> URec (Ptr ()) a -> m #

foldr :: (a -> b -> b) -> b -> URec (Ptr ()) a -> b #

foldr' :: (a -> b -> b) -> b -> URec (Ptr ()) a -> b #

foldl :: (b -> a -> b) -> b -> URec (Ptr ()) a -> b #

foldl' :: (b -> a -> b) -> b -> URec (Ptr ()) a -> b #

foldr1 :: (a -> a -> a) -> URec (Ptr ()) a -> a #

foldl1 :: (a -> a -> a) -> URec (Ptr ()) a -> a #

toList :: URec (Ptr ()) a -> [a] #

null :: URec (Ptr ()) a -> Bool #

length :: URec (Ptr ()) a -> Int #

elem :: Eq a => a -> URec (Ptr ()) a -> Bool #

maximum :: Ord a => URec (Ptr ()) a -> a #

minimum :: Ord a => URec (Ptr ()) a -> a #

sum :: Num a => URec (Ptr ()) a -> a #

product :: Num a => URec (Ptr ()) a -> a #

Foldable (Const m :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Functor.Const

Methods

fold :: Monoid m0 => Const m m0 -> m0 #

foldMap :: Monoid m0 => (a -> m0) -> Const m a -> m0 #

foldr :: (a -> b -> b) -> b -> Const m a -> b #

foldr' :: (a -> b -> b) -> b -> Const m a -> b #

foldl :: (b -> a -> b) -> b -> Const m a -> b #

foldl' :: (b -> a -> b) -> b -> Const m a -> b #

foldr1 :: (a -> a -> a) -> Const m a -> a #

foldl1 :: (a -> a -> a) -> Const m a -> a #

toList :: Const m a -> [a] #

null :: Const m a -> Bool #

length :: Const m a -> Int #

elem :: Eq a => a -> Const m a -> Bool #

maximum :: Ord a => Const m a -> a #

minimum :: Ord a => Const m a -> a #

sum :: Num a => Const m a -> a #

product :: Num a => Const m a -> a #

Foldable f => Foldable (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Ap f m -> m #

foldMap :: Monoid m => (a -> m) -> Ap f a -> m #

foldr :: (a -> b -> b) -> b -> Ap f a -> b #

foldr' :: (a -> b -> b) -> b -> Ap f a -> b #

foldl :: (b -> a -> b) -> b -> Ap f a -> b #

foldl' :: (b -> a -> b) -> b -> Ap f a -> b #

foldr1 :: (a -> a -> a) -> Ap f a -> a #

foldl1 :: (a -> a -> a) -> Ap f a -> a #

toList :: Ap f a -> [a] #

null :: Ap f a -> Bool #

length :: Ap f a -> Int #

elem :: Eq a => a -> Ap f a -> Bool #

maximum :: Ord a => Ap f a -> a #

minimum :: Ord a => Ap f a -> a #

sum :: Num a => Ap f a -> a #

product :: Num a => Ap f a -> a #

Foldable f => Foldable (Alt f)

Since: base-4.12.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Alt f m -> m #

foldMap :: Monoid m => (a -> m) -> Alt f a -> m #

foldr :: (a -> b -> b) -> b -> Alt f a -> b #

foldr' :: (a -> b -> b) -> b -> Alt f a -> b #

foldl :: (b -> a -> b) -> b -> Alt f a -> b #

foldl' :: (b -> a -> b) -> b -> Alt f a -> b #

foldr1 :: (a -> a -> a) -> Alt f a -> a #

foldl1 :: (a -> a -> a) -> Alt f a -> a #

toList :: Alt f a -> [a] #

null :: Alt f a -> Bool #

length :: Alt f a -> Int #

elem :: Eq a => a -> Alt f a -> Bool #

maximum :: Ord a => Alt f a -> a #

minimum :: Ord a => Alt f a -> a #

sum :: Num a => Alt f a -> a #

product :: Num a => Alt f a -> a #

Foldable f => Foldable (ExceptT e f) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

fold :: Monoid m => ExceptT e f m -> m #

foldMap :: Monoid m => (a -> m) -> ExceptT e f a -> m #

foldr :: (a -> b -> b) -> b -> ExceptT e f a -> b #

foldr' :: (a -> b -> b) -> b -> ExceptT e f a -> b #

foldl :: (b -> a -> b) -> b -> ExceptT e f a -> b #

foldl' :: (b -> a -> b) -> b -> ExceptT e f a -> b #

foldr1 :: (a -> a -> a) -> ExceptT e f a -> a #

foldl1 :: (a -> a -> a) -> ExceptT e f a -> a #

toList :: ExceptT e f a -> [a] #

null :: ExceptT e f a -> Bool #

length :: ExceptT e f a -> Int #

elem :: Eq a => a -> ExceptT e f a -> Bool #

maximum :: Ord a => ExceptT e f a -> a #

minimum :: Ord a => ExceptT e f a -> a #

sum :: Num a => ExceptT e f a -> a #

product :: Num a => ExceptT e f a -> a #

Foldable f => Foldable (ErrorT e f) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

fold :: Monoid m => ErrorT e f m -> m #

foldMap :: Monoid m => (a -> m) -> ErrorT e f a -> m #

foldr :: (a -> b -> b) -> b -> ErrorT e f a -> b #

foldr' :: (a -> b -> b) -> b -> ErrorT e f a -> b #

foldl :: (b -> a -> b) -> b -> ErrorT e f a -> b #

foldl' :: (b -> a -> b) -> b -> ErrorT e f a -> b #

foldr1 :: (a -> a -> a) -> ErrorT e f a -> a #

foldl1 :: (a -> a -> a) -> ErrorT e f a -> a #

toList :: ErrorT e f a -> [a] #

null :: ErrorT e f a -> Bool #

length :: ErrorT e f a -> Int #

elem :: Eq a => a -> ErrorT e f a -> Bool #

maximum :: Ord a => ErrorT e f a -> a #

minimum :: Ord a => ErrorT e f a -> a #

sum :: Num a => ErrorT e f a -> a #

product :: Num a => ErrorT e f a -> a #

Foldable (Tagged s) 
Instance details

Defined in Data.Tagged

Methods

fold :: Monoid m => Tagged s m -> m #

foldMap :: Monoid m => (a -> m) -> Tagged s a -> m #

foldr :: (a -> b -> b) -> b -> Tagged s a -> b #

foldr' :: (a -> b -> b) -> b -> Tagged s a -> b #

foldl :: (b -> a -> b) -> b -> Tagged s a -> b #

foldl' :: (b -> a -> b) -> b -> Tagged s a -> b #

foldr1 :: (a -> a -> a) -> Tagged s a -> a #

foldl1 :: (a -> a -> a) -> Tagged s a -> a #

toList :: Tagged s a -> [a] #

null :: Tagged s a -> Bool #

length :: Tagged s a -> Int #

elem :: Eq a => a -> Tagged s a -> Bool #

maximum :: Ord a => Tagged s a -> a #

minimum :: Ord a => Tagged s a -> a #

sum :: Num a => Tagged s a -> a #

product :: Num a => Tagged s a -> a #

Foldable (K1 i c :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => K1 i c m -> m #

foldMap :: Monoid m => (a -> m) -> K1 i c a -> m #

foldr :: (a -> b -> b) -> b -> K1 i c a -> b #

foldr' :: (a -> b -> b) -> b -> K1 i c a -> b #

foldl :: (b -> a -> b) -> b -> K1 i c a -> b #

foldl' :: (b -> a -> b) -> b -> K1 i c a -> b #

foldr1 :: (a -> a -> a) -> K1 i c a -> a #

foldl1 :: (a -> a -> a) -> K1 i c a -> a #

toList :: K1 i c a -> [a] #

null :: K1 i c a -> Bool #

length :: K1 i c a -> Int #

elem :: Eq a => a -> K1 i c a -> Bool #

maximum :: Ord a => K1 i c a -> a #

minimum :: Ord a => K1 i c a -> a #

sum :: Num a => K1 i c a -> a #

product :: Num a => K1 i c a -> a #

(Foldable f, Foldable g) => Foldable (f :+: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => (f :+: g) m -> m #

foldMap :: Monoid m => (a -> m) -> (f :+: g) a -> m #

foldr :: (a -> b -> b) -> b -> (f :+: g) a -> b #

foldr' :: (a -> b -> b) -> b -> (f :+: g) a -> b #

foldl :: (b -> a -> b) -> b -> (f :+: g) a -> b #

foldl' :: (b -> a -> b) -> b -> (f :+: g) a -> b #

foldr1 :: (a -> a -> a) -> (f :+: g) a -> a #

foldl1 :: (a -> a -> a) -> (f :+: g) a -> a #

toList :: (f :+: g) a -> [a] #

null :: (f :+: g) a -> Bool #

length :: (f :+: g) a -> Int #

elem :: Eq a => a -> (f :+: g) a -> Bool #

maximum :: Ord a => (f :+: g) a -> a #

minimum :: Ord a => (f :+: g) a -> a #

sum :: Num a => (f :+: g) a -> a #

product :: Num a => (f :+: g) a -> a #

(Foldable f, Foldable g) => Foldable (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => (f :*: g) m -> m #

foldMap :: Monoid m => (a -> m) -> (f :*: g) a -> m #

foldr :: (a -> b -> b) -> b -> (f :*: g) a -> b #

foldr' :: (a -> b -> b) -> b -> (f :*: g) a -> b #

foldl :: (b -> a -> b) -> b -> (f :*: g) a -> b #

foldl' :: (b -> a -> b) -> b -> (f :*: g) a -> b #

foldr1 :: (a -> a -> a) -> (f :*: g) a -> a #

foldl1 :: (a -> a -> a) -> (f :*: g) a -> a #

toList :: (f :*: g) a -> [a] #

null :: (f :*: g) a -> Bool #

length :: (f :*: g) a -> Int #

elem :: Eq a => a -> (f :*: g) a -> Bool #

maximum :: Ord a => (f :*: g) a -> a #

minimum :: Ord a => (f :*: g) a -> a #

sum :: Num a => (f :*: g) a -> a #

product :: Num a => (f :*: g) a -> a #

(Foldable f, Foldable g) => Foldable (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

fold :: Monoid m => Product f g m -> m #

foldMap :: Monoid m => (a -> m) -> Product f g a -> m #

foldr :: (a -> b -> b) -> b -> Product f g a -> b #

foldr' :: (a -> b -> b) -> b -> Product f g a -> b #

foldl :: (b -> a -> b) -> b -> Product f g a -> b #

foldl' :: (b -> a -> b) -> b -> Product f g a -> b #

foldr1 :: (a -> a -> a) -> Product f g a -> a #

foldl1 :: (a -> a -> a) -> Product f g a -> a #

toList :: Product f g a -> [a] #

null :: Product f g a -> Bool #

length :: Product f g a -> Int #

elem :: Eq a => a -> Product f g a -> Bool #

maximum :: Ord a => Product f g a -> a #

minimum :: Ord a => Product f g a -> a #

sum :: Num a => Product f g a -> a #

product :: Num a => Product f g a -> a #

(Foldable f, Foldable g) => Foldable (Sum f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Sum

Methods

fold :: Monoid m => Sum f g m -> m #

foldMap :: Monoid m => (a -> m) -> Sum f g a -> m #

foldr :: (a -> b -> b) -> b -> Sum f g a -> b #

foldr' :: (a -> b -> b) -> b -> Sum f g a -> b #

foldl :: (b -> a -> b) -> b -> Sum f g a -> b #

foldl' :: (b -> a -> b) -> b -> Sum f g a -> b #

foldr1 :: (a -> a -> a) -> Sum f g a -> a #

foldl1 :: (a -> a -> a) -> Sum f g a -> a #

toList :: Sum f g a -> [a] #

null :: Sum f g a -> Bool #

length :: Sum f g a -> Int #

elem :: Eq a => a -> Sum f g a -> Bool #

maximum :: Ord a => Sum f g a -> a #

minimum :: Ord a => Sum f g a -> a #

sum :: Num a => Sum f g a -> a #

product :: Num a => Sum f g a -> a #

Foldable f => Foldable (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => M1 i c f m -> m #

foldMap :: Monoid m => (a -> m) -> M1 i c f a -> m #

foldr :: (a -> b -> b) -> b -> M1 i c f a -> b #

foldr' :: (a -> b -> b) -> b -> M1 i c f a -> b #

foldl :: (b -> a -> b) -> b -> M1 i c f a -> b #

foldl' :: (b -> a -> b) -> b -> M1 i c f a -> b #

foldr1 :: (a -> a -> a) -> M1 i c f a -> a #

foldl1 :: (a -> a -> a) -> M1 i c f a -> a #

toList :: M1 i c f a -> [a] #

null :: M1 i c f a -> Bool #

length :: M1 i c f a -> Int #

elem :: Eq a => a -> M1 i c f a -> Bool #

maximum :: Ord a => M1 i c f a -> a #

minimum :: Ord a => M1 i c f a -> a #

sum :: Num a => M1 i c f a -> a #

product :: Num a => M1 i c f a -> a #

(Foldable f, Foldable g) => Foldable (f :.: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => (f :.: g) m -> m #

foldMap :: Monoid m => (a -> m) -> (f :.: g) a -> m #

foldr :: (a -> b -> b) -> b -> (f :.: g) a -> b #

foldr' :: (a -> b -> b) -> b -> (f :.: g) a -> b #

foldl :: (b -> a -> b) -> b -> (f :.: g) a -> b #

foldl' :: (b -> a -> b) -> b -> (f :.: g) a -> b #

foldr1 :: (a -> a -> a) -> (f :.: g) a -> a #

foldl1 :: (a -> a -> a) -> (f :.: g) a -> a #

toList :: (f :.: g) a -> [a] #

null :: (f :.: g) a -> Bool #

length :: (f :.: g) a -> Int #

elem :: Eq a => a -> (f :.: g) a -> Bool #

maximum :: Ord a => (f :.: g) a -> a #

minimum :: Ord a => (f :.: g) a -> a #

sum :: Num a => (f :.: g) a -> a #

product :: Num a => (f :.: g) a -> a #

(Foldable f, Foldable g) => Foldable (Compose f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

fold :: Monoid m => Compose f g m -> m #

foldMap :: Monoid m => (a -> m) -> Compose f g a -> m #

foldr :: (a -> b -> b) -> b -> Compose f g a -> b #

foldr' :: (a -> b -> b) -> b -> Compose f g a -> b #

foldl :: (b -> a -> b) -> b -> Compose f g a -> b #

foldl' :: (b -> a -> b) -> b -> Compose f g a -> b #

foldr1 :: (a -> a -> a) -> Compose f g a -> a #

foldl1 :: (a -> a -> a) -> Compose f g a -> a #

toList :: Compose f g a -> [a] #

null :: Compose f g a -> Bool #

length :: Compose f g a -> Int #

elem :: Eq a => a -> Compose f g a -> Bool #

maximum :: Ord a => Compose f g a -> a #

minimum :: Ord a => Compose f g a -> a #

sum :: Num a => Compose f g a -> a #

product :: Num a => Compose f g a -> a #

Foldable g => Foldable (Joker g a) 
Instance details

Defined in Data.Bifunctor.Joker

Methods

fold :: Monoid m => Joker g a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Joker g a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Joker g a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Joker g a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Joker g a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Joker g a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Joker g a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Joker g a a0 -> a0 #

toList :: Joker g a a0 -> [a0] #

null :: Joker g a a0 -> Bool #

length :: Joker g a a0 -> Int #

elem :: Eq a0 => a0 -> Joker g a a0 -> Bool #

maximum :: Ord a0 => Joker g a a0 -> a0 #

minimum :: Ord a0 => Joker g a a0 -> a0 #

sum :: Num a0 => Joker g a a0 -> a0 #

product :: Num a0 => Joker g a a0 -> a0 #

Foldable (Clown f a :: Type -> Type) 
Instance details

Defined in Data.Bifunctor.Clown

Methods

fold :: Monoid m => Clown f a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Clown f a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Clown f a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Clown f a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Clown f a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Clown f a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Clown f a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Clown f a a0 -> a0 #

toList :: Clown f a a0 -> [a0] #

null :: Clown f a a0 -> Bool #

length :: Clown f a a0 -> Int #

elem :: Eq a0 => a0 -> Clown f a a0 -> Bool #

maximum :: Ord a0 => Clown f a a0 -> a0 #

minimum :: Ord a0 => Clown f a a0 -> a0 #

sum :: Num a0 => Clown f a a0 -> a0 #

product :: Num a0 => Clown f a a0 -> a0 #

(Foldable f, Bifoldable p) => Foldable (Tannen f p a) 
Instance details

Defined in Data.Bifunctor.Tannen

Methods

fold :: Monoid m => Tannen f p a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Tannen f p a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Tannen f p a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Tannen f p a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Tannen f p a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Tannen f p a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Tannen f p a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Tannen f p a a0 -> a0 #

toList :: Tannen f p a a0 -> [a0] #

null :: Tannen f p a a0 -> Bool #

length :: Tannen f p a a0 -> Int #

elem :: Eq a0 => a0 -> Tannen f p a a0 -> Bool #

maximum :: Ord a0 => Tannen f p a a0 -> a0 #

minimum :: Ord a0 => Tannen f p a a0 -> a0 #

sum :: Num a0 => Tannen f p a a0 -> a0 #

product :: Num a0 => Tannen f p a a0 -> a0 #

(Bifoldable p, Foldable g) => Foldable (Biff p f g a) 
Instance details

Defined in Data.Bifunctor.Biff

Methods

fold :: Monoid m => Biff p f g a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Biff p f g a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Biff p f g a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Biff p f g a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Biff p f g a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Biff p f g a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Biff p f g a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Biff p f g a a0 -> a0 #

toList :: Biff p f g a a0 -> [a0] #

null :: Biff p f g a a0 -> Bool #

length :: Biff p f g a a0 -> Int #

elem :: Eq a0 => a0 -> Biff p f g a a0 -> Bool #

maximum :: Ord a0 => Biff p f g a a0 -> a0 #

minimum :: Ord a0 => Biff p f g a a0 -> a0 #

sum :: Num a0 => Biff p f g a a0 -> a0 #

product :: Num a0 => Biff p f g a a0 -> a0 #

class (Functor t, Foldable t) => Traversable (t :: Type -> Type) where #

Functors representing data structures that can be traversed from left to right.

A definition of traverse must satisfy the following laws:

naturality
t . traverse f = traverse (t . f) for every applicative transformation t
identity
traverse Identity = Identity
composition
traverse (Compose . fmap g . f) = Compose . fmap (traverse g) . traverse f

A definition of sequenceA must satisfy the following laws:

naturality
t . sequenceA = sequenceA . fmap t for every applicative transformation t
identity
sequenceA . fmap Identity = Identity
composition
sequenceA . fmap Compose = Compose . fmap sequenceA . sequenceA

where an applicative transformation is a function

t :: (Applicative f, Applicative g) => f a -> g a

preserving the Applicative operations, i.e.

and the identity functor Identity and composition of functors Compose are defined as

  newtype Identity a = Identity a

  instance Functor Identity where
    fmap f (Identity x) = Identity (f x)

  instance Applicative Identity where
    pure x = Identity x
    Identity f <*> Identity x = Identity (f x)

  newtype Compose f g a = Compose (f (g a))

  instance (Functor f, Functor g) => Functor (Compose f g) where
    fmap f (Compose x) = Compose (fmap (fmap f) x)

  instance (Applicative f, Applicative g) => Applicative (Compose f g) where
    pure x = Compose (pure (pure x))
    Compose f <*> Compose x = Compose ((<*>) <$> f <*> x)

(The naturality law is implied by parametricity.)

Instances are similar to Functor, e.g. given a data type

data Tree a = Empty | Leaf a | Node (Tree a) a (Tree a)

a suitable instance would be

instance Traversable Tree where
   traverse f Empty = pure Empty
   traverse f (Leaf x) = Leaf <$> f x
   traverse f (Node l k r) = Node <$> traverse f l <*> f k <*> traverse f r

This is suitable even for abstract types, as the laws for <*> imply a form of associativity.

The superclass instances should satisfy the following:

Minimal complete definition

traverse | sequenceA

Methods

traverse :: Applicative f => (a -> f b) -> t a -> f (t b) #

Map each element of a structure to an action, evaluate these actions from left to right, and collect the results. For a version that ignores the results see traverse_.

sequenceA :: Applicative f => t (f a) -> f (t a) #

Evaluate each action in the structure from left to right, and collect the results. For a version that ignores the results see sequenceA_.

mapM :: Monad m => (a -> m b) -> t a -> m (t b) #

Map each element of a structure to a monadic action, evaluate these actions from left to right, and collect the results. For a version that ignores the results see mapM_.

sequence :: Monad m => t (m a) -> m (t a) #

Evaluate each monadic action in the structure from left to right, and collect the results. For a version that ignores the results see sequence_.

Instances
Traversable []

Since: base-2.1

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> [a] -> f [b] #

sequenceA :: Applicative f => [f a] -> f [a] #

mapM :: Monad m => (a -> m b) -> [a] -> m [b] #

sequence :: Monad m => [m a] -> m [a] #

Traversable Maybe

Since: base-2.1

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Maybe a -> f (Maybe b) #

sequenceA :: Applicative f => Maybe (f a) -> f (Maybe a) #

mapM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b) #

sequence :: Monad m => Maybe (m a) -> m (Maybe a) #

Traversable Par1

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Par1 a -> f (Par1 b) #

sequenceA :: Applicative f => Par1 (f a) -> f (Par1 a) #

mapM :: Monad m => (a -> m b) -> Par1 a -> m (Par1 b) #

sequence :: Monad m => Par1 (m a) -> m (Par1 a) #

Traversable Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Last a -> f (Last b) #

sequenceA :: Applicative f => Last (f a) -> f (Last a) #

mapM :: Monad m => (a -> m b) -> Last a -> m (Last b) #

sequence :: Monad m => Last (m a) -> m (Last a) #

Traversable VersionRangeF 
Instance details

Defined in Distribution.Types.VersionRange

Methods

traverse :: Applicative f => (a -> f b) -> VersionRangeF a -> f (VersionRangeF b) #

sequenceA :: Applicative f => VersionRangeF (f a) -> f (VersionRangeF a) #

mapM :: Monad m => (a -> m b) -> VersionRangeF a -> m (VersionRangeF b) #

sequence :: Monad m => VersionRangeF (m a) -> m (VersionRangeF a) #

Traversable SCC

Since: containers-0.5.9

Instance details

Defined in Data.Graph

Methods

traverse :: Applicative f => (a -> f b) -> SCC a -> f (SCC b) #

sequenceA :: Applicative f => SCC (f a) -> f (SCC a) #

mapM :: Monad m => (a -> m b) -> SCC a -> m (SCC b) #

sequence :: Monad m => SCC (m a) -> m (SCC a) #

Traversable Identity

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Identity a -> f (Identity b) #

sequenceA :: Applicative f => Identity (f a) -> f (Identity a) #

mapM :: Monad m => (a -> m b) -> Identity a -> m (Identity b) #

sequence :: Monad m => Identity (m a) -> m (Identity a) #

Traversable ZipList

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> ZipList a -> f (ZipList b) #

sequenceA :: Applicative f => ZipList (f a) -> f (ZipList a) #

mapM :: Monad m => (a -> m b) -> ZipList a -> m (ZipList b) #

sequence :: Monad m => ZipList (m a) -> m (ZipList a) #

Traversable IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

traverse :: Applicative f => (a -> f b) -> IResult a -> f (IResult b) #

sequenceA :: Applicative f => IResult (f a) -> f (IResult a) #

mapM :: Monad m => (a -> m b) -> IResult a -> m (IResult b) #

sequence :: Monad m => IResult (m a) -> m (IResult a) #

Traversable Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Result a -> f (Result b) #

sequenceA :: Applicative f => Result (f a) -> f (Result a) #

mapM :: Monad m => (a -> m b) -> Result a -> m (Result b) #

sequence :: Monad m => Result (m a) -> m (Result a) #

Traversable Complex

Since: base-4.9.0.0

Instance details

Defined in Data.Complex

Methods

traverse :: Applicative f => (a -> f b) -> Complex a -> f (Complex b) #

sequenceA :: Applicative f => Complex (f a) -> f (Complex a) #

mapM :: Monad m => (a -> m b) -> Complex a -> m (Complex b) #

sequence :: Monad m => Complex (m a) -> m (Complex a) #

Traversable Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Min a -> f (Min b) #

sequenceA :: Applicative f => Min (f a) -> f (Min a) #

mapM :: Monad m => (a -> m b) -> Min a -> m (Min b) #

sequence :: Monad m => Min (m a) -> m (Min a) #

Traversable Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Max a -> f (Max b) #

sequenceA :: Applicative f => Max (f a) -> f (Max a) #

mapM :: Monad m => (a -> m b) -> Max a -> m (Max b) #

sequence :: Monad m => Max (m a) -> m (Max a) #

Traversable First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> First a -> f (First b) #

sequenceA :: Applicative f => First (f a) -> f (First a) #

mapM :: Monad m => (a -> m b) -> First a -> m (First b) #

sequence :: Monad m => First (m a) -> m (First a) #

Traversable Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Option a -> f (Option b) #

sequenceA :: Applicative f => Option (f a) -> f (Option a) #

mapM :: Monad m => (a -> m b) -> Option a -> m (Option b) #

sequence :: Monad m => Option (m a) -> m (Option a) #

Traversable First

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> First a -> f (First b) #

sequenceA :: Applicative f => First (f a) -> f (First a) #

mapM :: Monad m => (a -> m b) -> First a -> m (First b) #

sequence :: Monad m => First (m a) -> m (First a) #

Traversable Last

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Last a -> f (Last b) #

sequenceA :: Applicative f => Last (f a) -> f (Last a) #

mapM :: Monad m => (a -> m b) -> Last a -> m (Last b) #

sequence :: Monad m => Last (m a) -> m (Last a) #

Traversable Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Dual a -> f (Dual b) #

sequenceA :: Applicative f => Dual (f a) -> f (Dual a) #

mapM :: Monad m => (a -> m b) -> Dual a -> m (Dual b) #

sequence :: Monad m => Dual (m a) -> m (Dual a) #

Traversable Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Sum a -> f (Sum b) #

sequenceA :: Applicative f => Sum (f a) -> f (Sum a) #

mapM :: Monad m => (a -> m b) -> Sum a -> m (Sum b) #

sequence :: Monad m => Sum (m a) -> m (Sum a) #

Traversable Product

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Product a -> f (Product b) #

sequenceA :: Applicative f => Product (f a) -> f (Product a) #

mapM :: Monad m => (a -> m b) -> Product a -> m (Product b) #

sequence :: Monad m => Product (m a) -> m (Product a) #

Traversable Down

Since: base-4.12.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Down a -> f (Down b) #

sequenceA :: Applicative f => Down (f a) -> f (Down a) #

mapM :: Monad m => (a -> m b) -> Down a -> m (Down b) #

sequence :: Monad m => Down (m a) -> m (Down a) #

Traversable NonEmpty

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> NonEmpty a -> f (NonEmpty b) #

sequenceA :: Applicative f => NonEmpty (f a) -> f (NonEmpty a) #

mapM :: Monad m => (a -> m b) -> NonEmpty a -> m (NonEmpty b) #

sequence :: Monad m => NonEmpty (m a) -> m (NonEmpty a) #

Traversable IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

traverse :: Applicative f => (a -> f b) -> IntMap a -> f (IntMap b) #

sequenceA :: Applicative f => IntMap (f a) -> f (IntMap a) #

mapM :: Monad m => (a -> m b) -> IntMap a -> m (IntMap b) #

sequence :: Monad m => IntMap (m a) -> m (IntMap a) #

Traversable Tree 
Instance details

Defined in Data.Tree

Methods

traverse :: Applicative f => (a -> f b) -> Tree a -> f (Tree b) #

sequenceA :: Applicative f => Tree (f a) -> f (Tree a) #

mapM :: Monad m => (a -> m b) -> Tree a -> m (Tree b) #

sequence :: Monad m => Tree (m a) -> m (Tree a) #

Traversable Seq 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Seq a -> f (Seq b) #

sequenceA :: Applicative f => Seq (f a) -> f (Seq a) #

mapM :: Monad m => (a -> m b) -> Seq a -> m (Seq b) #

sequence :: Monad m => Seq (m a) -> m (Seq a) #

Traversable FingerTree 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> FingerTree a -> f (FingerTree b) #

sequenceA :: Applicative f => FingerTree (f a) -> f (FingerTree a) #

mapM :: Monad m => (a -> m b) -> FingerTree a -> m (FingerTree b) #

sequence :: Monad m => FingerTree (m a) -> m (FingerTree a) #

Traversable Digit 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Digit a -> f (Digit b) #

sequenceA :: Applicative f => Digit (f a) -> f (Digit a) #

mapM :: Monad m => (a -> m b) -> Digit a -> m (Digit b) #

sequence :: Monad m => Digit (m a) -> m (Digit a) #

Traversable Node 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Node a -> f (Node b) #

sequenceA :: Applicative f => Node (f a) -> f (Node a) #

mapM :: Monad m => (a -> m b) -> Node a -> m (Node b) #

sequence :: Monad m => Node (m a) -> m (Node a) #

Traversable Elem 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Elem a -> f (Elem b) #

sequenceA :: Applicative f => Elem (f a) -> f (Elem a) #

mapM :: Monad m => (a -> m b) -> Elem a -> m (Elem b) #

sequence :: Monad m => Elem (m a) -> m (Elem a) #

Traversable ViewL 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> ViewL a -> f (ViewL b) #

sequenceA :: Applicative f => ViewL (f a) -> f (ViewL a) #

mapM :: Monad m => (a -> m b) -> ViewL a -> m (ViewL b) #

sequence :: Monad m => ViewL (m a) -> m (ViewL a) #

Traversable ViewR 
Instance details

Defined in Data.Sequence.Internal

Methods

traverse :: Applicative f => (a -> f b) -> ViewR a -> f (ViewR b) #

sequenceA :: Applicative f => ViewR (f a) -> f (ViewR a) #

mapM :: Monad m => (a -> m b) -> ViewR a -> m (ViewR b) #

sequence :: Monad m => ViewR (m a) -> m (ViewR a) #

Traversable Name 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Name a -> f (Name b) #

sequenceA :: Applicative f => Name (f a) -> f (Name a) #

mapM :: Monad m => (a -> m b) -> Name a -> m (Name b) #

sequence :: Monad m => Name (m a) -> m (Name a) #

Traversable Scoped 
Instance details

Defined in Language.Haskell.Names.Types

Methods

traverse :: Applicative f => (a -> f b) -> Scoped a -> f (Scoped b) #

sequenceA :: Applicative f => Scoped (f a) -> f (Scoped a) #

mapM :: Monad m => (a -> m b) -> Scoped a -> m (Scoped b) #

sequence :: Monad m => Scoped (m a) -> m (Scoped a) #

Traversable NameInfo 
Instance details

Defined in Language.Haskell.Names.Types

Methods

traverse :: Applicative f => (a -> f b) -> NameInfo a -> f (NameInfo b) #

sequenceA :: Applicative f => NameInfo (f a) -> f (NameInfo a) #

mapM :: Monad m => (a -> m b) -> NameInfo a -> m (NameInfo b) #

sequence :: Monad m => NameInfo (m a) -> m (NameInfo a) #

Traversable Error 
Instance details

Defined in Language.Haskell.Names.Types

Methods

traverse :: Applicative f => (a -> f b) -> Error a -> f (Error b) #

sequenceA :: Applicative f => Error (f a) -> f (Error a) #

mapM :: Monad m => (a -> m b) -> Error a -> m (Error b) #

sequence :: Monad m => Error (m a) -> m (Error a) #

Traversable ModuleName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ModuleName a -> f (ModuleName b) #

sequenceA :: Applicative f => ModuleName (f a) -> f (ModuleName a) #

mapM :: Monad m => (a -> m b) -> ModuleName a -> m (ModuleName b) #

sequence :: Monad m => ModuleName (m a) -> m (ModuleName a) #

Traversable SpecialCon 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> SpecialCon a -> f (SpecialCon b) #

sequenceA :: Applicative f => SpecialCon (f a) -> f (SpecialCon a) #

mapM :: Monad m => (a -> m b) -> SpecialCon a -> m (SpecialCon b) #

sequence :: Monad m => SpecialCon (m a) -> m (SpecialCon a) #

Traversable QName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> QName a -> f (QName b) #

sequenceA :: Applicative f => QName (f a) -> f (QName a) #

mapM :: Monad m => (a -> m b) -> QName a -> m (QName b) #

sequence :: Monad m => QName (m a) -> m (QName a) #

Traversable IPName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> IPName a -> f (IPName b) #

sequenceA :: Applicative f => IPName (f a) -> f (IPName a) #

mapM :: Monad m => (a -> m b) -> IPName a -> m (IPName b) #

sequence :: Monad m => IPName (m a) -> m (IPName a) #

Traversable QOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> QOp a -> f (QOp b) #

sequenceA :: Applicative f => QOp (f a) -> f (QOp a) #

mapM :: Monad m => (a -> m b) -> QOp a -> m (QOp b) #

sequence :: Monad m => QOp (m a) -> m (QOp a) #

Traversable Op 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Op a -> f (Op b) #

sequenceA :: Applicative f => Op (f a) -> f (Op a) #

mapM :: Monad m => (a -> m b) -> Op a -> m (Op b) #

sequence :: Monad m => Op (m a) -> m (Op a) #

Traversable CName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> CName a -> f (CName b) #

sequenceA :: Applicative f => CName (f a) -> f (CName a) #

mapM :: Monad m => (a -> m b) -> CName a -> m (CName b) #

sequence :: Monad m => CName (m a) -> m (CName a) #

Traversable Module 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Module a -> f (Module b) #

sequenceA :: Applicative f => Module (f a) -> f (Module a) #

mapM :: Monad m => (a -> m b) -> Module a -> m (Module b) #

sequence :: Monad m => Module (m a) -> m (Module a) #

Traversable ModuleHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ModuleHead a -> f (ModuleHead b) #

sequenceA :: Applicative f => ModuleHead (f a) -> f (ModuleHead a) #

mapM :: Monad m => (a -> m b) -> ModuleHead a -> m (ModuleHead b) #

sequence :: Monad m => ModuleHead (m a) -> m (ModuleHead a) #

Traversable ExportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ExportSpecList a -> f (ExportSpecList b) #

sequenceA :: Applicative f => ExportSpecList (f a) -> f (ExportSpecList a) #

mapM :: Monad m => (a -> m b) -> ExportSpecList a -> m (ExportSpecList b) #

sequence :: Monad m => ExportSpecList (m a) -> m (ExportSpecList a) #

Traversable ExportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ExportSpec a -> f (ExportSpec b) #

sequenceA :: Applicative f => ExportSpec (f a) -> f (ExportSpec a) #

mapM :: Monad m => (a -> m b) -> ExportSpec a -> m (ExportSpec b) #

sequence :: Monad m => ExportSpec (m a) -> m (ExportSpec a) #

Traversable EWildcard 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> EWildcard a -> f (EWildcard b) #

sequenceA :: Applicative f => EWildcard (f a) -> f (EWildcard a) #

mapM :: Monad m => (a -> m b) -> EWildcard a -> m (EWildcard b) #

sequence :: Monad m => EWildcard (m a) -> m (EWildcard a) #

Traversable Namespace 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Namespace a -> f (Namespace b) #

sequenceA :: Applicative f => Namespace (f a) -> f (Namespace a) #

mapM :: Monad m => (a -> m b) -> Namespace a -> m (Namespace b) #

sequence :: Monad m => Namespace (m a) -> m (Namespace a) #

Traversable ImportDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ImportDecl a -> f (ImportDecl b) #

sequenceA :: Applicative f => ImportDecl (f a) -> f (ImportDecl a) #

mapM :: Monad m => (a -> m b) -> ImportDecl a -> m (ImportDecl b) #

sequence :: Monad m => ImportDecl (m a) -> m (ImportDecl a) #

Traversable ImportSpecList 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ImportSpecList a -> f (ImportSpecList b) #

sequenceA :: Applicative f => ImportSpecList (f a) -> f (ImportSpecList a) #

mapM :: Monad m => (a -> m b) -> ImportSpecList a -> m (ImportSpecList b) #

sequence :: Monad m => ImportSpecList (m a) -> m (ImportSpecList a) #

Traversable ImportSpec 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ImportSpec a -> f (ImportSpec b) #

sequenceA :: Applicative f => ImportSpec (f a) -> f (ImportSpec a) #

mapM :: Monad m => (a -> m b) -> ImportSpec a -> m (ImportSpec b) #

sequence :: Monad m => ImportSpec (m a) -> m (ImportSpec a) #

Traversable Assoc 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Assoc a -> f (Assoc b) #

sequenceA :: Applicative f => Assoc (f a) -> f (Assoc a) #

mapM :: Monad m => (a -> m b) -> Assoc a -> m (Assoc b) #

sequence :: Monad m => Assoc (m a) -> m (Assoc a) #

Traversable Decl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Decl a -> f (Decl b) #

sequenceA :: Applicative f => Decl (f a) -> f (Decl a) #

mapM :: Monad m => (a -> m b) -> Decl a -> m (Decl b) #

sequence :: Monad m => Decl (m a) -> m (Decl a) #

Traversable PatternSynDirection 
Instance details

Defined in Language.Haskell.Exts.Syntax

Traversable TypeEqn 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> TypeEqn a -> f (TypeEqn b) #

sequenceA :: Applicative f => TypeEqn (f a) -> f (TypeEqn a) #

mapM :: Monad m => (a -> m b) -> TypeEqn a -> m (TypeEqn b) #

sequence :: Monad m => TypeEqn (m a) -> m (TypeEqn a) #

Traversable Annotation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Annotation a -> f (Annotation b) #

sequenceA :: Applicative f => Annotation (f a) -> f (Annotation a) #

mapM :: Monad m => (a -> m b) -> Annotation a -> m (Annotation b) #

sequence :: Monad m => Annotation (m a) -> m (Annotation a) #

Traversable BooleanFormula 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> BooleanFormula a -> f (BooleanFormula b) #

sequenceA :: Applicative f => BooleanFormula (f a) -> f (BooleanFormula a) #

mapM :: Monad m => (a -> m b) -> BooleanFormula a -> m (BooleanFormula b) #

sequence :: Monad m => BooleanFormula (m a) -> m (BooleanFormula a) #

Traversable Role 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Role a -> f (Role b) #

sequenceA :: Applicative f => Role (f a) -> f (Role a) #

mapM :: Monad m => (a -> m b) -> Role a -> m (Role b) #

sequence :: Monad m => Role (m a) -> m (Role a) #

Traversable DataOrNew 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> DataOrNew a -> f (DataOrNew b) #

sequenceA :: Applicative f => DataOrNew (f a) -> f (DataOrNew a) #

mapM :: Monad m => (a -> m b) -> DataOrNew a -> m (DataOrNew b) #

sequence :: Monad m => DataOrNew (m a) -> m (DataOrNew a) #

Traversable InjectivityInfo 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> InjectivityInfo a -> f (InjectivityInfo b) #

sequenceA :: Applicative f => InjectivityInfo (f a) -> f (InjectivityInfo a) #

mapM :: Monad m => (a -> m b) -> InjectivityInfo a -> m (InjectivityInfo b) #

sequence :: Monad m => InjectivityInfo (m a) -> m (InjectivityInfo a) #

Traversable ResultSig 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ResultSig a -> f (ResultSig b) #

sequenceA :: Applicative f => ResultSig (f a) -> f (ResultSig a) #

mapM :: Monad m => (a -> m b) -> ResultSig a -> m (ResultSig b) #

sequence :: Monad m => ResultSig (m a) -> m (ResultSig a) #

Traversable DeclHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> DeclHead a -> f (DeclHead b) #

sequenceA :: Applicative f => DeclHead (f a) -> f (DeclHead a) #

mapM :: Monad m => (a -> m b) -> DeclHead a -> m (DeclHead b) #

sequence :: Monad m => DeclHead (m a) -> m (DeclHead a) #

Traversable InstRule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> InstRule a -> f (InstRule b) #

sequenceA :: Applicative f => InstRule (f a) -> f (InstRule a) #

mapM :: Monad m => (a -> m b) -> InstRule a -> m (InstRule b) #

sequence :: Monad m => InstRule (m a) -> m (InstRule a) #

Traversable InstHead 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> InstHead a -> f (InstHead b) #

sequenceA :: Applicative f => InstHead (f a) -> f (InstHead a) #

mapM :: Monad m => (a -> m b) -> InstHead a -> m (InstHead b) #

sequence :: Monad m => InstHead (m a) -> m (InstHead a) #

Traversable Deriving 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Deriving a -> f (Deriving b) #

sequenceA :: Applicative f => Deriving (f a) -> f (Deriving a) #

mapM :: Monad m => (a -> m b) -> Deriving a -> m (Deriving b) #

sequence :: Monad m => Deriving (m a) -> m (Deriving a) #

Traversable DerivStrategy 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> DerivStrategy a -> f (DerivStrategy b) #

sequenceA :: Applicative f => DerivStrategy (f a) -> f (DerivStrategy a) #

mapM :: Monad m => (a -> m b) -> DerivStrategy a -> m (DerivStrategy b) #

sequence :: Monad m => DerivStrategy (m a) -> m (DerivStrategy a) #

Traversable Binds 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Binds a -> f (Binds b) #

sequenceA :: Applicative f => Binds (f a) -> f (Binds a) #

mapM :: Monad m => (a -> m b) -> Binds a -> m (Binds b) #

sequence :: Monad m => Binds (m a) -> m (Binds a) #

Traversable IPBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> IPBind a -> f (IPBind b) #

sequenceA :: Applicative f => IPBind (f a) -> f (IPBind a) #

mapM :: Monad m => (a -> m b) -> IPBind a -> m (IPBind b) #

sequence :: Monad m => IPBind (m a) -> m (IPBind a) #

Traversable Match 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Match a -> f (Match b) #

sequenceA :: Applicative f => Match (f a) -> f (Match a) #

mapM :: Monad m => (a -> m b) -> Match a -> m (Match b) #

sequence :: Monad m => Match (m a) -> m (Match a) #

Traversable QualConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> QualConDecl a -> f (QualConDecl b) #

sequenceA :: Applicative f => QualConDecl (f a) -> f (QualConDecl a) #

mapM :: Monad m => (a -> m b) -> QualConDecl a -> m (QualConDecl b) #

sequence :: Monad m => QualConDecl (m a) -> m (QualConDecl a) #

Traversable ConDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ConDecl a -> f (ConDecl b) #

sequenceA :: Applicative f => ConDecl (f a) -> f (ConDecl a) #

mapM :: Monad m => (a -> m b) -> ConDecl a -> m (ConDecl b) #

sequence :: Monad m => ConDecl (m a) -> m (ConDecl a) #

Traversable FieldDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> FieldDecl a -> f (FieldDecl b) #

sequenceA :: Applicative f => FieldDecl (f a) -> f (FieldDecl a) #

mapM :: Monad m => (a -> m b) -> FieldDecl a -> m (FieldDecl b) #

sequence :: Monad m => FieldDecl (m a) -> m (FieldDecl a) #

Traversable GadtDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> GadtDecl a -> f (GadtDecl b) #

sequenceA :: Applicative f => GadtDecl (f a) -> f (GadtDecl a) #

mapM :: Monad m => (a -> m b) -> GadtDecl a -> m (GadtDecl b) #

sequence :: Monad m => GadtDecl (m a) -> m (GadtDecl a) #

Traversable ClassDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ClassDecl a -> f (ClassDecl b) #

sequenceA :: Applicative f => ClassDecl (f a) -> f (ClassDecl a) #

mapM :: Monad m => (a -> m b) -> ClassDecl a -> m (ClassDecl b) #

sequence :: Monad m => ClassDecl (m a) -> m (ClassDecl a) #

Traversable InstDecl 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> InstDecl a -> f (InstDecl b) #

sequenceA :: Applicative f => InstDecl (f a) -> f (InstDecl a) #

mapM :: Monad m => (a -> m b) -> InstDecl a -> m (InstDecl b) #

sequence :: Monad m => InstDecl (m a) -> m (InstDecl a) #

Traversable BangType 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> BangType a -> f (BangType b) #

sequenceA :: Applicative f => BangType (f a) -> f (BangType a) #

mapM :: Monad m => (a -> m b) -> BangType a -> m (BangType b) #

sequence :: Monad m => BangType (m a) -> m (BangType a) #

Traversable Unpackedness 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Unpackedness a -> f (Unpackedness b) #

sequenceA :: Applicative f => Unpackedness (f a) -> f (Unpackedness a) #

mapM :: Monad m => (a -> m b) -> Unpackedness a -> m (Unpackedness b) #

sequence :: Monad m => Unpackedness (m a) -> m (Unpackedness a) #

Traversable Rhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Rhs a -> f (Rhs b) #

sequenceA :: Applicative f => Rhs (f a) -> f (Rhs a) #

mapM :: Monad m => (a -> m b) -> Rhs a -> m (Rhs b) #

sequence :: Monad m => Rhs (m a) -> m (Rhs a) #

Traversable GuardedRhs 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> GuardedRhs a -> f (GuardedRhs b) #

sequenceA :: Applicative f => GuardedRhs (f a) -> f (GuardedRhs a) #

mapM :: Monad m => (a -> m b) -> GuardedRhs a -> m (GuardedRhs b) #

sequence :: Monad m => GuardedRhs (m a) -> m (GuardedRhs a) #

Traversable Type 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Type a -> f (Type b) #

sequenceA :: Applicative f => Type (f a) -> f (Type a) #

mapM :: Monad m => (a -> m b) -> Type a -> m (Type b) #

sequence :: Monad m => Type (m a) -> m (Type a) #

Traversable MaybePromotedName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> MaybePromotedName a -> f (MaybePromotedName b) #

sequenceA :: Applicative f => MaybePromotedName (f a) -> f (MaybePromotedName a) #

mapM :: Monad m => (a -> m b) -> MaybePromotedName a -> m (MaybePromotedName b) #

sequence :: Monad m => MaybePromotedName (m a) -> m (MaybePromotedName a) #

Traversable Promoted 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Promoted a -> f (Promoted b) #

sequenceA :: Applicative f => Promoted (f a) -> f (Promoted a) #

mapM :: Monad m => (a -> m b) -> Promoted a -> m (Promoted b) #

sequence :: Monad m => Promoted (m a) -> m (Promoted a) #

Traversable TyVarBind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> TyVarBind a -> f (TyVarBind b) #

sequenceA :: Applicative f => TyVarBind (f a) -> f (TyVarBind a) #

mapM :: Monad m => (a -> m b) -> TyVarBind a -> m (TyVarBind b) #

sequence :: Monad m => TyVarBind (m a) -> m (TyVarBind a) #

Traversable Kind 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Kind a -> f (Kind b) #

sequenceA :: Applicative f => Kind (f a) -> f (Kind a) #

mapM :: Monad m => (a -> m b) -> Kind a -> m (Kind b) #

sequence :: Monad m => Kind (m a) -> m (Kind a) #

Traversable FunDep 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> FunDep a -> f (FunDep b) #

sequenceA :: Applicative f => FunDep (f a) -> f (FunDep a) #

mapM :: Monad m => (a -> m b) -> FunDep a -> m (FunDep b) #

sequence :: Monad m => FunDep (m a) -> m (FunDep a) #

Traversable Context 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Context a -> f (Context b) #

sequenceA :: Applicative f => Context (f a) -> f (Context a) #

mapM :: Monad m => (a -> m b) -> Context a -> m (Context b) #

sequence :: Monad m => Context (m a) -> m (Context a) #

Traversable Asst 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Asst a -> f (Asst b) #

sequenceA :: Applicative f => Asst (f a) -> f (Asst a) #

mapM :: Monad m => (a -> m b) -> Asst a -> m (Asst b) #

sequence :: Monad m => Asst (m a) -> m (Asst a) #

Traversable Literal 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Literal a -> f (Literal b) #

sequenceA :: Applicative f => Literal (f a) -> f (Literal a) #

mapM :: Monad m => (a -> m b) -> Literal a -> m (Literal b) #

sequence :: Monad m => Literal (m a) -> m (Literal a) #

Traversable Sign 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Sign a -> f (Sign b) #

sequenceA :: Applicative f => Sign (f a) -> f (Sign a) #

mapM :: Monad m => (a -> m b) -> Sign a -> m (Sign b) #

sequence :: Monad m => Sign (m a) -> m (Sign a) #

Traversable Exp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Exp a -> f (Exp b) #

sequenceA :: Applicative f => Exp (f a) -> f (Exp a) #

mapM :: Monad m => (a -> m b) -> Exp a -> m (Exp b) #

sequence :: Monad m => Exp (m a) -> m (Exp a) #

Traversable XName 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> XName a -> f (XName b) #

sequenceA :: Applicative f => XName (f a) -> f (XName a) #

mapM :: Monad m => (a -> m b) -> XName a -> m (XName b) #

sequence :: Monad m => XName (m a) -> m (XName a) #

Traversable XAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> XAttr a -> f (XAttr b) #

sequenceA :: Applicative f => XAttr (f a) -> f (XAttr a) #

mapM :: Monad m => (a -> m b) -> XAttr a -> m (XAttr b) #

sequence :: Monad m => XAttr (m a) -> m (XAttr a) #

Traversable Bracket 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Bracket a -> f (Bracket b) #

sequenceA :: Applicative f => Bracket (f a) -> f (Bracket a) #

mapM :: Monad m => (a -> m b) -> Bracket a -> m (Bracket b) #

sequence :: Monad m => Bracket (m a) -> m (Bracket a) #

Traversable Splice 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Splice a -> f (Splice b) #

sequenceA :: Applicative f => Splice (f a) -> f (Splice a) #

mapM :: Monad m => (a -> m b) -> Splice a -> m (Splice b) #

sequence :: Monad m => Splice (m a) -> m (Splice a) #

Traversable Safety 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Safety a -> f (Safety b) #

sequenceA :: Applicative f => Safety (f a) -> f (Safety a) #

mapM :: Monad m => (a -> m b) -> Safety a -> m (Safety b) #

sequence :: Monad m => Safety (m a) -> m (Safety a) #

Traversable CallConv 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> CallConv a -> f (CallConv b) #

sequenceA :: Applicative f => CallConv (f a) -> f (CallConv a) #

mapM :: Monad m => (a -> m b) -> CallConv a -> m (CallConv b) #

sequence :: Monad m => CallConv (m a) -> m (CallConv a) #

Traversable ModulePragma 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> ModulePragma a -> f (ModulePragma b) #

sequenceA :: Applicative f => ModulePragma (f a) -> f (ModulePragma a) #

mapM :: Monad m => (a -> m b) -> ModulePragma a -> m (ModulePragma b) #

sequence :: Monad m => ModulePragma (m a) -> m (ModulePragma a) #

Traversable Overlap 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Overlap a -> f (Overlap b) #

sequenceA :: Applicative f => Overlap (f a) -> f (Overlap a) #

mapM :: Monad m => (a -> m b) -> Overlap a -> m (Overlap b) #

sequence :: Monad m => Overlap (m a) -> m (Overlap a) #

Traversable Activation 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Activation a -> f (Activation b) #

sequenceA :: Applicative f => Activation (f a) -> f (Activation a) #

mapM :: Monad m => (a -> m b) -> Activation a -> m (Activation b) #

sequence :: Monad m => Activation (m a) -> m (Activation a) #

Traversable Rule 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Rule a -> f (Rule b) #

sequenceA :: Applicative f => Rule (f a) -> f (Rule a) #

mapM :: Monad m => (a -> m b) -> Rule a -> m (Rule b) #

sequence :: Monad m => Rule (m a) -> m (Rule a) #

Traversable RuleVar 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> RuleVar a -> f (RuleVar b) #

sequenceA :: Applicative f => RuleVar (f a) -> f (RuleVar a) #

mapM :: Monad m => (a -> m b) -> RuleVar a -> m (RuleVar b) #

sequence :: Monad m => RuleVar (m a) -> m (RuleVar a) #

Traversable WarningText 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> WarningText a -> f (WarningText b) #

sequenceA :: Applicative f => WarningText (f a) -> f (WarningText a) #

mapM :: Monad m => (a -> m b) -> WarningText a -> m (WarningText b) #

sequence :: Monad m => WarningText (m a) -> m (WarningText a) #

Traversable Pat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Pat a -> f (Pat b) #

sequenceA :: Applicative f => Pat (f a) -> f (Pat a) #

mapM :: Monad m => (a -> m b) -> Pat a -> m (Pat b) #

sequence :: Monad m => Pat (m a) -> m (Pat a) #

Traversable PXAttr 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> PXAttr a -> f (PXAttr b) #

sequenceA :: Applicative f => PXAttr (f a) -> f (PXAttr a) #

mapM :: Monad m => (a -> m b) -> PXAttr a -> m (PXAttr b) #

sequence :: Monad m => PXAttr (m a) -> m (PXAttr a) #

Traversable RPatOp 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> RPatOp a -> f (RPatOp b) #

sequenceA :: Applicative f => RPatOp (f a) -> f (RPatOp a) #

mapM :: Monad m => (a -> m b) -> RPatOp a -> m (RPatOp b) #

sequence :: Monad m => RPatOp (m a) -> m (RPatOp a) #

Traversable RPat 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> RPat a -> f (RPat b) #

sequenceA :: Applicative f => RPat (f a) -> f (RPat a) #

mapM :: Monad m => (a -> m b) -> RPat a -> m (RPat b) #

sequence :: Monad m => RPat (m a) -> m (RPat a) #

Traversable PatField 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> PatField a -> f (PatField b) #

sequenceA :: Applicative f => PatField (f a) -> f (PatField a) #

mapM :: Monad m => (a -> m b) -> PatField a -> m (PatField b) #

sequence :: Monad m => PatField (m a) -> m (PatField a) #

Traversable Stmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Stmt a -> f (Stmt b) #

sequenceA :: Applicative f => Stmt (f a) -> f (Stmt a) #

mapM :: Monad m => (a -> m b) -> Stmt a -> m (Stmt b) #

sequence :: Monad m => Stmt (m a) -> m (Stmt a) #

Traversable QualStmt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> QualStmt a -> f (QualStmt b) #

sequenceA :: Applicative f => QualStmt (f a) -> f (QualStmt a) #

mapM :: Monad m => (a -> m b) -> QualStmt a -> m (QualStmt b) #

sequence :: Monad m => QualStmt (m a) -> m (QualStmt a) #

Traversable FieldUpdate 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> FieldUpdate a -> f (FieldUpdate b) #

sequenceA :: Applicative f => FieldUpdate (f a) -> f (FieldUpdate a) #

mapM :: Monad m => (a -> m b) -> FieldUpdate a -> m (FieldUpdate b) #

sequence :: Monad m => FieldUpdate (m a) -> m (FieldUpdate a) #

Traversable Alt 
Instance details

Defined in Language.Haskell.Exts.Syntax

Methods

traverse :: Applicative f => (a -> f b) -> Alt a -> f (Alt b) #

sequenceA :: Applicative f => Alt (f a) -> f (Alt a) #

mapM :: Monad m => (a -> m b) -> Alt a -> m (Alt b) #

sequence :: Monad m => Alt (m a) -> m (Alt a) #

Traversable List 
Instance details

Defined in Data.Aeson.Config.Types

Methods

traverse :: Applicative f => (a -> f b) -> List a -> f (List b) #

sequenceA :: Applicative f => List (f a) -> f (List a) #

mapM :: Monad m => (a -> m b) -> List a -> m (List b) #

sequence :: Monad m => List (m a) -> m (List a) #

Traversable Section 
Instance details

Defined in Hpack.Config

Methods

traverse :: Applicative f => (a -> f b) -> Section a -> f (Section b) #

sequenceA :: Applicative f => Section (f a) -> f (Section a) #

mapM :: Monad m => (a -> m b) -> Section a -> m (Section b) #

sequence :: Monad m => Section (m a) -> m (Section a) #

Traversable Conditional 
Instance details

Defined in Hpack.Config

Methods

traverse :: Applicative f => (a -> f b) -> Conditional a -> f (Conditional b) #

sequenceA :: Applicative f => Conditional (f a) -> f (Conditional a) #

mapM :: Monad m => (a -> m b) -> Conditional a -> m (Conditional b) #

sequence :: Monad m => Conditional (m a) -> m (Conditional a) #

Traversable HistoriedResponse 
Instance details

Defined in Network.HTTP.Client

Methods

traverse :: Applicative f => (a -> f b) -> HistoriedResponse a -> f (HistoriedResponse b) #

sequenceA :: Applicative f => HistoriedResponse (f a) -> f (HistoriedResponse a) #

mapM :: Monad m => (a -> m b) -> HistoriedResponse a -> m (HistoriedResponse b) #

sequence :: Monad m => HistoriedResponse (m a) -> m (HistoriedResponse a) #

Traversable Response 
Instance details

Defined in Network.HTTP.Client.Types

Methods

traverse :: Applicative f => (a -> f b) -> Response a -> f (Response b) #

sequenceA :: Applicative f => Response (f a) -> f (Response a) #

mapM :: Monad m => (a -> m b) -> Response a -> m (Response b) #

sequence :: Monad m => Response (m a) -> m (Response a) #

Traversable Vector 
Instance details

Defined in Data.Vector

Methods

traverse :: Applicative f => (a -> f b) -> Vector a -> f (Vector b) #

sequenceA :: Applicative f => Vector (f a) -> f (Vector a) #

mapM :: Monad m => (a -> m b) -> Vector a -> m (Vector b) #

sequence :: Monad m => Vector (m a) -> m (Vector a) #

Traversable PointedList 
Instance details

Defined in Data.List.PointedList

Methods

traverse :: Applicative f => (a -> f b) -> PointedList a -> f (PointedList b) #

sequenceA :: Applicative f => PointedList (f a) -> f (PointedList a) #

mapM :: Monad m => (a -> m b) -> PointedList a -> m (PointedList b) #

sequence :: Monad m => PointedList (m a) -> m (PointedList a) #

Traversable SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Methods

traverse :: Applicative f => (a -> f b) -> SmallArray a -> f (SmallArray b) #

sequenceA :: Applicative f => SmallArray (f a) -> f (SmallArray a) #

mapM :: Monad m => (a -> m b) -> SmallArray a -> m (SmallArray b) #

sequence :: Monad m => SmallArray (m a) -> m (SmallArray a) #

Traversable Array 
Instance details

Defined in Data.Primitive.Array

Methods

traverse :: Applicative f => (a -> f b) -> Array a -> f (Array b) #

sequenceA :: Applicative f => Array (f a) -> f (Array a) #

mapM :: Monad m => (a -> m b) -> Array a -> m (Array b) #

sequence :: Monad m => Array (m a) -> m (Array a) #

Traversable (Either a)

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a0 -> f b) -> Either a a0 -> f (Either a b) #

sequenceA :: Applicative f => Either a (f a0) -> f (Either a a0) #

mapM :: Monad m => (a0 -> m b) -> Either a a0 -> m (Either a b) #

sequence :: Monad m => Either a (m a0) -> m (Either a a0) #

Traversable (V1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> V1 a -> f (V1 b) #

sequenceA :: Applicative f => V1 (f a) -> f (V1 a) #

mapM :: Monad m => (a -> m b) -> V1 a -> m (V1 b) #

sequence :: Monad m => V1 (m a) -> m (V1 a) #

Traversable (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> U1 a -> f (U1 b) #

sequenceA :: Applicative f => U1 (f a) -> f (U1 a) #

mapM :: Monad m => (a -> m b) -> U1 a -> m (U1 b) #

sequence :: Monad m => U1 (m a) -> m (U1 a) #

Traversable ((,) a)

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a0 -> f b) -> (a, a0) -> f (a, b) #

sequenceA :: Applicative f => (a, f a0) -> f (a, a0) #

mapM :: Monad m => (a0 -> m b) -> (a, a0) -> m (a, b) #

sequence :: Monad m => (a, m a0) -> m (a, a0) #

Traversable (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Map k a -> f (Map k b) #

sequenceA :: Applicative f => Map k (f a) -> f (Map k a) #

mapM :: Monad m => (a -> m b) -> Map k a -> m (Map k b) #

sequence :: Monad m => Map k (m a) -> m (Map k a) #

Traversable (HashMap k) 
Instance details

Defined in Data.HashMap.Base

Methods

traverse :: Applicative f => (a -> f b) -> HashMap k a -> f (HashMap k b) #

sequenceA :: Applicative f => HashMap k (f a) -> f (HashMap k a) #

mapM :: Monad m => (a -> m b) -> HashMap k a -> m (HashMap k b) #

sequence :: Monad m => HashMap k (m a) -> m (HashMap k a) #

Ix i => Traversable (Array i)

Since: base-2.1

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Array i a -> f (Array i b) #

sequenceA :: Applicative f => Array i (f a) -> f (Array i a) #

mapM :: Monad m => (a -> m b) -> Array i a -> m (Array i b) #

sequence :: Monad m => Array i (m a) -> m (Array i a) #

Traversable (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a0 -> f b) -> Arg a a0 -> f (Arg a b) #

sequenceA :: Applicative f => Arg a (f a0) -> f (Arg a a0) #

mapM :: Monad m => (a0 -> m b) -> Arg a a0 -> m (Arg a b) #

sequence :: Monad m => Arg a (m a0) -> m (Arg a a0) #

Traversable (Proxy :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Proxy a -> f (Proxy b) #

sequenceA :: Applicative f => Proxy (f a) -> f (Proxy a) #

mapM :: Monad m => (a -> m b) -> Proxy a -> m (Proxy b) #

sequence :: Monad m => Proxy (m a) -> m (Proxy a) #

Traversable (Product a) 
Instance details

Defined in Data.Aeson.Config.Types

Methods

traverse :: Applicative f => (a0 -> f b) -> Product a a0 -> f (Product a b) #

sequenceA :: Applicative f => Product a (f a0) -> f (Product a a0) #

mapM :: Monad m => (a0 -> m b) -> Product a a0 -> m (Product a b) #

sequence :: Monad m => Product a (m a0) -> m (Product a a0) #

Traversable f => Traversable (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Rec1 f a -> f0 (Rec1 f b) #

sequenceA :: Applicative f0 => Rec1 f (f0 a) -> f0 (Rec1 f a) #

mapM :: Monad m => (a -> m b) -> Rec1 f a -> m (Rec1 f b) #

sequence :: Monad m => Rec1 f (m a) -> m (Rec1 f a) #

Traversable (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Char a -> f (URec Char b) #

sequenceA :: Applicative f => URec Char (f a) -> f (URec Char a) #

mapM :: Monad m => (a -> m b) -> URec Char a -> m (URec Char b) #

sequence :: Monad m => URec Char (m a) -> m (URec Char a) #

Traversable (URec Double :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Double a -> f (URec Double b) #

sequenceA :: Applicative f => URec Double (f a) -> f (URec Double a) #

mapM :: Monad m => (a -> m b) -> URec Double a -> m (URec Double b) #

sequence :: Monad m => URec Double (m a) -> m (URec Double a) #

Traversable (URec Float :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Float a -> f (URec Float b) #

sequenceA :: Applicative f => URec Float (f a) -> f (URec Float a) #

mapM :: Monad m => (a -> m b) -> URec Float a -> m (URec Float b) #

sequence :: Monad m => URec Float (m a) -> m (URec Float a) #

Traversable (URec Int :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Int a -> f (URec Int b) #

sequenceA :: Applicative f => URec Int (f a) -> f (URec Int a) #

mapM :: Monad m => (a -> m b) -> URec Int a -> m (URec Int b) #

sequence :: Monad m => URec Int (m a) -> m (URec Int a) #

Traversable (URec Word :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Word a -> f (URec Word b) #

sequenceA :: Applicative f => URec Word (f a) -> f (URec Word a) #

mapM :: Monad m => (a -> m b) -> URec Word a -> m (URec Word b) #

sequence :: Monad m => URec Word (m a) -> m (URec Word a) #

Traversable (URec (Ptr ()) :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec (Ptr ()) a -> f (URec (Ptr ()) b) #

sequenceA :: Applicative f => URec (Ptr ()) (f a) -> f (URec (Ptr ()) a) #

mapM :: Monad m => (a -> m b) -> URec (Ptr ()) a -> m (URec (Ptr ()) b) #

sequence :: Monad m => URec (Ptr ()) (m a) -> m (URec (Ptr ()) a) #

Traversable (Const m :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Const m a -> f (Const m b) #

sequenceA :: Applicative f => Const m (f a) -> f (Const m a) #

mapM :: Monad m0 => (a -> m0 b) -> Const m a -> m0 (Const m b) #

sequence :: Monad m0 => Const m (m0 a) -> m0 (Const m a) #

Traversable f => Traversable (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Ap f a -> f0 (Ap f b) #

sequenceA :: Applicative f0 => Ap f (f0 a) -> f0 (Ap f a) #

mapM :: Monad m => (a -> m b) -> Ap f a -> m (Ap f b) #

sequence :: Monad m => Ap f (m a) -> m (Ap f a) #

Traversable f => Traversable (Alt f)

Since: base-4.12.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Alt f a -> f0 (Alt f b) #

sequenceA :: Applicative f0 => Alt f (f0 a) -> f0 (Alt f a) #

mapM :: Monad m => (a -> m b) -> Alt f a -> m (Alt f b) #

sequence :: Monad m => Alt f (m a) -> m (Alt f a) #

Traversable f => Traversable (ExceptT e f) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

traverse :: Applicative f0 => (a -> f0 b) -> ExceptT e f a -> f0 (ExceptT e f b) #

sequenceA :: Applicative f0 => ExceptT e f (f0 a) -> f0 (ExceptT e f a) #

mapM :: Monad m => (a -> m b) -> ExceptT e f a -> m (ExceptT e f b) #

sequence :: Monad m => ExceptT e f (m a) -> m (ExceptT e f a) #

Traversable f => Traversable (ErrorT e f) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

traverse :: Applicative f0 => (a -> f0 b) -> ErrorT e f a -> f0 (ErrorT e f b) #

sequenceA :: Applicative f0 => ErrorT e f (f0 a) -> f0 (ErrorT e f a) #

mapM :: Monad m => (a -> m b) -> ErrorT e f a -> m (ErrorT e f b) #

sequence :: Monad m => ErrorT e f (m a) -> m (ErrorT e f a) #

Traversable (Tagged s) 
Instance details

Defined in Data.Tagged

Methods

traverse :: Applicative f => (a -> f b) -> Tagged s a -> f (Tagged s b) #

sequenceA :: Applicative f => Tagged s (f a) -> f (Tagged s a) #

mapM :: Monad m => (a -> m b) -> Tagged s a -> m (Tagged s b) #

sequence :: Monad m => Tagged s (m a) -> m (Tagged s a) #

Traversable (K1 i c :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> K1 i c a -> f (K1 i c b) #

sequenceA :: Applicative f => K1 i c (f a) -> f (K1 i c a) #

mapM :: Monad m => (a -> m b) -> K1 i c a -> m (K1 i c b) #

sequence :: Monad m => K1 i c (m a) -> m (K1 i c a) #

(Traversable f, Traversable g) => Traversable (f :+: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> (f :+: g) a -> f0 ((f :+: g) b) #

sequenceA :: Applicative f0 => (f :+: g) (f0 a) -> f0 ((f :+: g) a) #

mapM :: Monad m => (a -> m b) -> (f :+: g) a -> m ((f :+: g) b) #

sequence :: Monad m => (f :+: g) (m a) -> m ((f :+: g) a) #

(Traversable f, Traversable g) => Traversable (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> (f :*: g) a -> f0 ((f :*: g) b) #

sequenceA :: Applicative f0 => (f :*: g) (f0 a) -> f0 ((f :*: g) a) #

mapM :: Monad m => (a -> m b) -> (f :*: g) a -> m ((f :*: g) b) #

sequence :: Monad m => (f :*: g) (m a) -> m ((f :*: g) a) #

(Traversable f, Traversable g) => Traversable (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Product f g a -> f0 (Product f g b) #

sequenceA :: Applicative f0 => Product f g (f0 a) -> f0 (Product f g a) #

mapM :: Monad m => (a -> m b) -> Product f g a -> m (Product f g b) #

sequence :: Monad m => Product f g (m a) -> m (Product f g a) #

(Traversable f, Traversable g) => Traversable (Sum f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Sum

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Sum f g a -> f0 (Sum f g b) #

sequenceA :: Applicative f0 => Sum f g (f0 a) -> f0 (Sum f g a) #

mapM :: Monad m => (a -> m b) -> Sum f g a -> m (Sum f g b) #

sequence :: Monad m => Sum f g (m a) -> m (Sum f g a) #

Traversable f => Traversable (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> M1 i c f a -> f0 (M1 i c f b) #

sequenceA :: Applicative f0 => M1 i c f (f0 a) -> f0 (M1 i c f a) #

mapM :: Monad m => (a -> m b) -> M1 i c f a -> m (M1 i c f b) #

sequence :: Monad m => M1 i c f (m a) -> m (M1 i c f a) #

(Traversable f, Traversable g) => Traversable (f :.: g)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f0 => (a -> f0 b) -> (f :.: g) a -> f0 ((f :.: g) b) #

sequenceA :: Applicative f0 => (f :.: g) (f0 a) -> f0 ((f :.: g) a) #

mapM :: Monad m => (a -> m b) -> (f :.: g) a -> m ((f :.: g) b) #

sequence :: Monad m => (f :.: g) (m a) -> m ((f :.: g) a) #

(Traversable f, Traversable g) => Traversable (Compose f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

traverse :: Applicative f0 => (a -> f0 b) -> Compose f g a -> f0 (Compose f g b) #

sequenceA :: Applicative f0 => Compose f g (f0 a) -> f0 (Compose f g a) #

mapM :: Monad m => (a -> m b) -> Compose f g a -> m (Compose f g b) #

sequence :: Monad m => Compose f g (m a) -> m (Compose f g a) #

Traversable g => Traversable (Joker g a) 
Instance details

Defined in Data.Bifunctor.Joker

Methods

traverse :: Applicative f => (a0 -> f b) -> Joker g a a0 -> f (Joker g a b) #

sequenceA :: Applicative f => Joker g a (f a0) -> f (Joker g a a0) #

mapM :: Monad m => (a0 -> m b) -> Joker g a a0 -> m (Joker g a b) #

sequence :: Monad m => Joker g a (m a0) -> m (Joker g a a0) #

Traversable (Clown f a :: Type -> Type) 
Instance details

Defined in Data.Bifunctor.Clown

Methods

traverse :: Applicative f0 => (a0 -> f0 b) -> Clown f a a0 -> f0 (Clown f a b) #

sequenceA :: Applicative f0 => Clown f a (f0 a0) -> f0 (Clown f a a0) #

mapM :: Monad m => (a0 -> m b) -> Clown f a a0 -> m (Clown f a b) #

sequence :: Monad m => Clown f a (m a0) -> m (Clown f a a0) #

(Traversable f, Bitraversable p) => Traversable (Tannen f p a) 
Instance details

Defined in Data.Bifunctor.Tannen

Methods

traverse :: Applicative f0 => (a0 -> f0 b) -> Tannen f p a a0 -> f0 (Tannen f p a b) #

sequenceA :: Applicative f0 => Tannen f p a (f0 a0) -> f0 (Tannen f p a a0) #

mapM :: Monad m => (a0 -> m b) -> Tannen f p a a0 -> m (Tannen f p a b) #

sequence :: Monad m => Tannen f p a (m a0) -> m (Tannen f p a a0) #

(Bitraversable p, Traversable g) => Traversable (Biff p f g a) 
Instance details

Defined in Data.Bifunctor.Biff

Methods

traverse :: Applicative f0 => (a0 -> f0 b) -> Biff p f g a a0 -> f0 (Biff p f g a b) #

sequenceA :: Applicative f0 => Biff p f g a (f0 a0) -> f0 (Biff p f g a a0) #

mapM :: Monad m => (a0 -> m b) -> Biff p f g a a0 -> m (Biff p f g a b) #

sequence :: Monad m => Biff p f g a (m a0) -> m (Biff p f g a a0) #

class Generic a #

Representable types of kind *. This class is derivable in GHC with the DeriveGeneric flag on.

A Generic instance must satisfy the following laws:

from . toid
to . fromid

Minimal complete definition

from, to

Instances
Generic Bool 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Bool :: Type -> Type #

Methods

from :: Bool -> Rep Bool x #

to :: Rep Bool x -> Bool #

Generic Ordering 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Ordering :: Type -> Type #

Methods

from :: Ordering -> Rep Ordering x #

to :: Rep Ordering x -> Ordering #

Generic Exp 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Exp :: Type -> Type #

Methods

from :: Exp -> Rep Exp x #

to :: Rep Exp x -> Exp #

Generic Match 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Match :: Type -> Type #

Methods

from :: Match -> Rep Match x #

to :: Rep Match x -> Match #

Generic Clause 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Clause :: Type -> Type #

Methods

from :: Clause -> Rep Clause x #

to :: Rep Clause x -> Clause #

Generic Pat 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Pat :: Type -> Type #

Methods

from :: Pat -> Rep Pat x #

to :: Rep Pat x -> Pat #

Generic Type 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Type :: Type -> Type #

Methods

from :: Type -> Rep Type x #

to :: Rep Type x -> Type #

Generic Dec 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Dec :: Type -> Type #

Methods

from :: Dec -> Rep Dec x #

to :: Rep Dec x -> Dec #

Generic Name 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Name :: Type -> Type #

Methods

from :: Name -> Rep Name x #

to :: Rep Name x -> Name #

Generic FunDep 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FunDep :: Type -> Type #

Methods

from :: FunDep -> Rep FunDep x #

to :: Rep FunDep x -> FunDep #

Generic InjectivityAnn 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep InjectivityAnn :: Type -> Type #

Generic Overlap 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Overlap :: Type -> Type #

Methods

from :: Overlap -> Rep Overlap x #

to :: Rep Overlap x -> Overlap #

Generic () 
Instance details

Defined in GHC.Generics

Associated Types

type Rep () :: Type -> Type #

Methods

from :: () -> Rep () x #

to :: Rep () x -> () #

Generic Doc 
Instance details

Defined in Text.PrettyPrint.HughesPJ

Associated Types

type Rep Doc :: Type -> Type #

Methods

from :: Doc -> Rep Doc x #

to :: Rep Doc x -> Doc #

Generic ShortTextLst 
Instance details

Defined in Distribution.ModuleName

Associated Types

type Rep ShortTextLst :: Type -> Type #

Methods

from :: ShortTextLst -> Rep ShortTextLst x #

to :: Rep ShortTextLst x -> ShortTextLst #

Generic Version 
Instance details

Defined in Data.Version

Associated Types

type Rep Version :: Type -> Type #

Methods

from :: Version -> Rep Version x #

to :: Rep Version x -> Version #

Generic LegacyExeDependency 
Instance details

Defined in Distribution.Types.LegacyExeDependency

Associated Types

type Rep LegacyExeDependency :: Type -> Type #

Generic MungedPackageId 
Instance details

Defined in Distribution.Types.MungedPackageId

Associated Types

type Rep MungedPackageId :: Type -> Type #

Generic MungedPackageName 
Instance details

Defined in Distribution.Types.MungedPackageName

Associated Types

type Rep MungedPackageName :: Type -> Type #

Generic Dependency 
Instance details

Defined in Distribution.Types.Dependency

Associated Types

type Rep Dependency :: Type -> Type #

Generic ExeDependency 
Instance details

Defined in Distribution.Types.ExeDependency

Associated Types

type Rep ExeDependency :: Type -> Type #

Generic Module 
Instance details

Defined in Distribution.Types.Module

Associated Types

type Rep Module :: Type -> Type #

Methods

from :: Module -> Rep Module x #

to :: Rep Module x -> Module #

Generic UnitId 
Instance details

Defined in Distribution.Types.UnitId

Associated Types

type Rep UnitId :: Type -> Type #

Methods

from :: UnitId -> Rep UnitId x #

to :: Rep UnitId x -> UnitId #

Generic DefUnitId 
Instance details

Defined in Distribution.Types.UnitId

Associated Types

type Rep DefUnitId :: Type -> Type #

Generic PackageIdentifier 
Instance details

Defined in Distribution.Types.PackageId

Associated Types

type Rep PackageIdentifier :: Type -> Type #

Generic ComponentName 
Instance details

Defined in Distribution.Types.ComponentName

Associated Types

type Rep ComponentName :: Type -> Type #

Generic UnqualComponentName 
Instance details

Defined in Distribution.Types.UnqualComponentName

Associated Types

type Rep UnqualComponentName :: Type -> Type #

Generic PackageName 
Instance details

Defined in Distribution.Types.PackageName

Associated Types

type Rep PackageName :: Type -> Type #

Generic CompilerFlavor 
Instance details

Defined in Distribution.Compiler

Associated Types

type Rep CompilerFlavor :: Type -> Type #

Generic CompilerId 
Instance details

Defined in Distribution.Compiler

Associated Types

type Rep CompilerId :: Type -> Type #

Generic CompilerInfo 
Instance details

Defined in Distribution.Compiler

Associated Types

type Rep CompilerInfo :: Type -> Type #

Generic AbiTag 
Instance details

Defined in Distribution.Compiler

Associated Types

type Rep AbiTag :: Type -> Type #

Methods

from :: AbiTag -> Rep AbiTag x #

to :: Rep AbiTag x -> AbiTag #

Generic Language 
Instance details

Defined in Language.Haskell.Extension

Associated Types

type Rep Language :: Type -> Type #

Methods

from :: Language -> Rep Language x #

to :: Rep Language x -> Language #

Generic Extension 
Instance details

Defined in Language.Haskell.Extension

Associated Types

type Rep Extension :: Type -> Type #

Generic KnownExtension 
Instance details

Defined in Language.Haskell.Extension

Associated Types

type Rep KnownExtension :: Type -> Type #

Generic License 
Instance details

Defined in Distribution.License

Associated Types

type Rep License :: Type -> Type #

Methods

from :: License -> Rep License x #

to :: Rep License x -> License #

Generic ModuleName 
Instance details

Defined in Distribution.ModuleName

Associated Types

type Rep ModuleName :: Type -> Type #

Generic License 
Instance details

Defined in Distribution.SPDX.License

Associated Types

type Rep License :: Type -> Type #

Methods

from :: License -> Rep License x #

to :: Rep License x -> License #

Generic LicenseExpression 
Instance details

Defined in Distribution.SPDX.LicenseExpression

Associated Types

type Rep LicenseExpression :: Type -> Type #

Generic SimpleLicenseExpression 
Instance details

Defined in Distribution.SPDX.LicenseExpression

Associated Types

type Rep SimpleLicenseExpression :: Type -> Type #

Generic LicenseExceptionId 
Instance details

Defined in Distribution.SPDX.LicenseExceptionId

Associated Types

type Rep LicenseExceptionId :: Type -> Type #

Generic LicenseId 
Instance details

Defined in Distribution.SPDX.LicenseId

Associated Types

type Rep LicenseId :: Type -> Type #

Generic LicenseRef 
Instance details

Defined in Distribution.SPDX.LicenseReference

Associated Types

type Rep LicenseRef :: Type -> Type #

Generic AbiHash 
Instance details

Defined in Distribution.Types.AbiHash

Associated Types

type Rep AbiHash :: Type -> Type #

Methods

from :: AbiHash -> Rep AbiHash x #

to :: Rep AbiHash x -> AbiHash #

Generic ComponentId 
Instance details

Defined in Distribution.Types.ComponentId

Associated Types

type Rep ComponentId :: Type -> Type #

Generic PkgconfigName 
Instance details

Defined in Distribution.Types.PkgconfigName

Associated Types

type Rep PkgconfigName :: Type -> Type #

Generic VersionRange 
Instance details

Defined in Distribution.Types.VersionRange

Associated Types

type Rep VersionRange :: Type -> Type #

Generic Version 
Instance details

Defined in Distribution.Types.Version

Associated Types

type Rep Version :: Type -> Type #

Methods

from :: Version -> Rep Version x #

to :: Rep Version x -> Version #

Generic ShortText 
Instance details

Defined in Distribution.Utils.ShortText

Associated Types

type Rep ShortText :: Type -> Type #

Generic PError 
Instance details

Defined in Distribution.Parsec.Common

Associated Types

type Rep PError :: Type -> Type #

Methods

from :: PError -> Rep PError x #

to :: Rep PError x -> PError #

Generic PWarnType 
Instance details

Defined in Distribution.Parsec.Common

Associated Types

type Rep PWarnType :: Type -> Type #

Generic PWarning 
Instance details

Defined in Distribution.Parsec.Common

Associated Types

type Rep PWarning :: Type -> Type #

Methods

from :: PWarning -> Rep PWarning x #

to :: Rep PWarning x -> PWarning #

Generic Position 
Instance details

Defined in Distribution.Parsec.Common

Associated Types

type Rep Position :: Type -> Type #

Methods

from :: Position -> Rep Position x #

to :: Rep Position x -> Position #

Generic CabalSpecVersion 
Instance details

Defined in Distribution.CabalSpecVersion

Associated Types

type Rep CabalSpecVersion :: Type -> Type #

Generic CabalFeature 
Instance details

Defined in Distribution.CabalSpecVersion

Associated Types

type Rep CabalFeature :: Type -> Type #

Generic Any 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep Any :: Type -> Type #

Methods

from :: Any -> Rep Any x #

to :: Rep Any x -> Any #

Generic All 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep All :: Type -> Type #

Methods

from :: All -> Rep All x #

to :: Rep All x -> All #

Generic Con 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Con :: Type -> Type #

Methods

from :: Con -> Rep Con x #

to :: Rep Con x -> Con #

Generic Value 
Instance details

Defined in Data.Aeson.Types.Internal

Associated Types

type Rep Value :: Type -> Type #

Methods

from :: Value -> Rep Value x #

to :: Rep Value x -> Value #

Generic Void 
Instance details

Defined in Data.Void

Associated Types

type Rep Void :: Type -> Type #

Methods

from :: Void -> Rep Void x #

to :: Rep Void x -> Void #

Generic ExitCode 
Instance details

Defined in GHC.IO.Exception

Associated Types

type Rep ExitCode :: Type -> Type #

Methods

from :: ExitCode -> Rep ExitCode x #

to :: Rep ExitCode x -> ExitCode #

Generic Fixity 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Fixity :: Type -> Type #

Methods

from :: Fixity -> Rep Fixity x #

to :: Rep Fixity x -> Fixity #

Generic Associativity 
Instance details

Defined in GHC.Generics

Associated Types

type Rep Associativity :: Type -> Type #

Generic SourceUnpackedness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep SourceUnpackedness :: Type -> Type #

Generic SourceStrictness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep SourceStrictness :: Type -> Type #

Generic DecidedStrictness 
Instance details

Defined in GHC.Generics

Associated Types

type Rep DecidedStrictness :: Type -> Type #

Generic Extension 
Instance details

Defined in GHC.LanguageExtensions.Type

Associated Types

type Rep Extension :: Type -> Type #

Generic ForeignSrcLang 
Instance details

Defined in GHC.ForeignSrcLang.Type

Associated Types

type Rep ForeignSrcLang :: Type -> Type #

Generic Boxed 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep Boxed :: Type -> Type #

Methods

from :: Boxed -> Rep Boxed x #

to :: Rep Boxed x -> Boxed #

Generic Tool 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep Tool :: Type -> Type #

Methods

from :: Tool -> Rep Tool x #

to :: Rep Tool x -> Tool #

Generic SrcLoc 
Instance details

Defined in Language.Haskell.Exts.SrcLoc

Associated Types

type Rep SrcLoc :: Type -> Type #

Methods

from :: SrcLoc -> Rep SrcLoc x #

to :: Rep SrcLoc x -> SrcLoc #

Generic SrcSpan 
Instance details

Defined in Language.Haskell.Exts.SrcLoc

Associated Types

type Rep SrcSpan :: Type -> Type #

Methods

from :: SrcSpan -> Rep SrcSpan x #

to :: Rep SrcSpan x -> SrcSpan #

Generic SrcSpanInfo 
Instance details

Defined in Language.Haskell.Exts.SrcLoc

Associated Types

type Rep SrcSpanInfo :: Type -> Type #

Generic Mode 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep Mode :: Type -> Type #

Methods

from :: Mode -> Rep Mode x #

to :: Rep Mode x -> Mode #

Generic Style 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep Style :: Type -> Type #

Methods

from :: Style -> Rep Style x #

to :: Rep Style x -> Style #

Generic Local 
Instance details

Defined in Hpack.Syntax.Defaults

Associated Types

type Rep Local :: Type -> Type #

Methods

from :: Local -> Rep Local x #

to :: Rep Local x -> Local #

Generic BuildType 
Instance details

Defined in Hpack.Config

Associated Types

type Rep BuildType :: Type -> Type #

Generic URI 
Instance details

Defined in Network.URI

Associated Types

type Rep URI :: Type -> Type #

Methods

from :: URI -> Rep URI x #

to :: Rep URI x -> URI #

Generic TyVarBndr 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TyVarBndr :: Type -> Type #

Generic InvalidPosException 
Instance details

Defined in Text.Megaparsec.Pos

Associated Types

type Rep InvalidPosException :: Type -> Type #

Generic SourcePos 
Instance details

Defined in Text.Megaparsec.Pos

Associated Types

type Rep SourcePos :: Type -> Type #

Generic TextDetails 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep TextDetails :: Type -> Type #

Generic WindowBits 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep WindowBits :: Type -> Type #

Generic ModName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep ModName :: Type -> Type #

Methods

from :: ModName -> Rep ModName x #

to :: Rep ModName x -> ModName #

Generic PkgName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PkgName :: Type -> Type #

Methods

from :: PkgName -> Rep PkgName x #

to :: Rep PkgName x -> PkgName #

Generic Module 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Module :: Type -> Type #

Methods

from :: Module -> Rep Module x #

to :: Rep Module x -> Module #

Generic OccName 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep OccName :: Type -> Type #

Methods

from :: OccName -> Rep OccName x #

to :: Rep OccName x -> OccName #

Generic NameFlavour 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep NameFlavour :: Type -> Type #

Generic NameSpace 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep NameSpace :: Type -> Type #

Generic Loc 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Loc :: Type -> Type #

Methods

from :: Loc -> Rep Loc x #

to :: Rep Loc x -> Loc #

Generic Info 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Info :: Type -> Type #

Methods

from :: Info -> Rep Info x #

to :: Rep Info x -> Info #

Generic ModuleInfo 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep ModuleInfo :: Type -> Type #

Generic Fixity 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Fixity :: Type -> Type #

Methods

from :: Fixity -> Rep Fixity x #

to :: Rep Fixity x -> Fixity #

Generic FixityDirection 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FixityDirection :: Type -> Type #

Generic Lit 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Lit :: Type -> Type #

Methods

from :: Lit -> Rep Lit x #

to :: Rep Lit x -> Lit #

Generic Body 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Body :: Type -> Type #

Methods

from :: Body -> Rep Body x #

to :: Rep Body x -> Body #

Generic Guard 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Guard :: Type -> Type #

Methods

from :: Guard -> Rep Guard x #

to :: Rep Guard x -> Guard #

Generic Stmt 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Stmt :: Type -> Type #

Methods

from :: Stmt -> Rep Stmt x #

to :: Rep Stmt x -> Stmt #

Generic Range 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Range :: Type -> Type #

Methods

from :: Range -> Rep Range x #

to :: Rep Range x -> Range #

Generic DerivClause 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DerivClause :: Type -> Type #

Generic DerivStrategy 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DerivStrategy :: Type -> Type #

Generic TypeFamilyHead 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TypeFamilyHead :: Type -> Type #

Generic TySynEqn 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TySynEqn :: Type -> Type #

Methods

from :: TySynEqn -> Rep TySynEqn x #

to :: Rep TySynEqn x -> TySynEqn #

Generic Foreign 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Foreign :: Type -> Type #

Methods

from :: Foreign -> Rep Foreign x #

to :: Rep Foreign x -> Foreign #

Generic Callconv 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Callconv :: Type -> Type #

Methods

from :: Callconv -> Rep Callconv x #

to :: Rep Callconv x -> Callconv #

Generic Safety 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Safety :: Type -> Type #

Methods

from :: Safety -> Rep Safety x #

to :: Rep Safety x -> Safety #

Generic Pragma 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Pragma :: Type -> Type #

Methods

from :: Pragma -> Rep Pragma x #

to :: Rep Pragma x -> Pragma #

Generic Inline 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Inline :: Type -> Type #

Methods

from :: Inline -> Rep Inline x #

to :: Rep Inline x -> Inline #

Generic RuleMatch 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep RuleMatch :: Type -> Type #

Generic Phases 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Phases :: Type -> Type #

Methods

from :: Phases -> Rep Phases x #

to :: Rep Phases x -> Phases #

Generic RuleBndr 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep RuleBndr :: Type -> Type #

Methods

from :: RuleBndr -> Rep RuleBndr x #

to :: Rep RuleBndr x -> RuleBndr #

Generic AnnTarget 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep AnnTarget :: Type -> Type #

Generic SourceUnpackedness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep SourceUnpackedness :: Type -> Type #

Generic SourceStrictness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep SourceStrictness :: Type -> Type #

Generic DecidedStrictness 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep DecidedStrictness :: Type -> Type #

Generic Bang 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Bang :: Type -> Type #

Methods

from :: Bang -> Rep Bang x #

to :: Rep Bang x -> Bang #

Generic PatSynDir 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PatSynDir :: Type -> Type #

Generic PatSynArgs 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep PatSynArgs :: Type -> Type #

Generic FamilyResultSig 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep FamilyResultSig :: Type -> Type #

Generic TyLit 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep TyLit :: Type -> Type #

Methods

from :: TyLit -> Rep TyLit x #

to :: Rep TyLit x -> TyLit #

Generic Role 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep Role :: Type -> Type #

Methods

from :: Role -> Rep Role x #

to :: Rep Role x -> Role #

Generic AnnLookup 
Instance details

Defined in Language.Haskell.TH.Syntax

Associated Types

type Rep AnnLookup :: Type -> Type #

Generic Format 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep Format :: Type -> Type #

Methods

from :: Format -> Rep Format x #

to :: Rep Format x -> Format #

Generic Method 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep Method :: Type -> Type #

Methods

from :: Method -> Rep Method x #

to :: Rep Method x -> Method #

Generic CompressionLevel 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep CompressionLevel :: Type -> Type #

Generic MemoryLevel 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep MemoryLevel :: Type -> Type #

Generic CompressionStrategy 
Instance details

Defined in Codec.Compression.Zlib.Stream

Associated Types

type Rep CompressionStrategy :: Type -> Type #

Generic ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Associated Types

type Rep ChallengeError :: Type -> Type #

Generic Condition 
Instance details

Defined in Hpack.Config

Associated Types

type Rep Condition :: Type -> Type #

Methods

from :: Condition -> Rep Condition x #

to :: Rep Condition x -> Condition #

Generic CustomSetupSection 
Instance details

Defined in Hpack.Config

Associated Types

type Rep CustomSetupSection :: Type -> Type #

Methods

from :: CustomSetupSection -> Rep CustomSetupSection x #

to :: Rep CustomSetupSection x -> CustomSetupSection #

Generic ExecutableSection 
Instance details

Defined in Hpack.Config

Associated Types

type Rep ExecutableSection :: Type -> Type #

Methods

from :: ExecutableSection -> Rep ExecutableSection x #

to :: Rep ExecutableSection x -> ExecutableSection #

Generic FlagSection 
Instance details

Defined in Hpack.Config

Associated Types

type Rep FlagSection :: Type -> Type #

Methods

from :: FlagSection -> Rep FlagSection x #

to :: Rep FlagSection x -> FlagSection #

Generic LibrarySection 
Instance details

Defined in Hpack.Config

Associated Types

type Rep LibrarySection :: Type -> Type #

Methods

from :: LibrarySection -> Rep LibrarySection x #

to :: Rep LibrarySection x -> LibrarySection #

Generic DefaultsConfig 
Instance details

Defined in Hpack.Config

Associated Types

type Rep DefaultsConfig :: Type -> Type #

Methods

from :: DefaultsConfig -> Rep DefaultsConfig x #

to :: Rep DefaultsConfig x -> DefaultsConfig #

Generic ParseGithub 
Instance details

Defined in Hpack.Syntax.Defaults

Associated Types

type Rep ParseGithub :: Type -> Type #

Methods

from :: ParseGithub -> Rep ParseGithub x #

to :: Rep ParseGithub x -> ParseGithub #

Generic Config Source # 
Instance details

Defined in AOC2018

Associated Types

type Rep Config :: Type -> Type #

Methods

from :: Config -> Rep Config x #

to :: Rep Config x -> Config #

Generic [a] 
Instance details

Defined in GHC.Generics

Associated Types

type Rep [a] :: Type -> Type #

Methods

from :: [a] -> Rep [a] x #

to :: Rep [a] x -> [a] #

Generic (Maybe a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Maybe a) :: Type -> Type #

Methods

from :: Maybe a -> Rep (Maybe a) x #

to :: Rep (Maybe a) x -> Maybe a #

Generic (Par1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Par1 p) :: Type -> Type #

Methods

from :: Par1 p -> Rep (Par1 p) x #

to :: Rep (Par1 p) x -> Par1 p #

Generic (Last a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Last a) :: Type -> Type #

Methods

from :: Last a -> Rep (Last a) x #

to :: Rep (Last a) x -> Last a #

Generic (VersionRangeF a) 
Instance details

Defined in Distribution.Types.VersionRange

Associated Types

type Rep (VersionRangeF a) :: Type -> Type #

Generic (Last' a) 
Instance details

Defined in Distribution.Compat.Semigroup

Associated Types

type Rep (Last' a) :: Type -> Type #

Methods

from :: Last' a -> Rep (Last' a) x #

to :: Rep (Last' a) x -> Last' a #

Generic (SCC vertex) 
Instance details

Defined in Data.Graph

Associated Types

type Rep (SCC vertex) :: Type -> Type #

Methods

from :: SCC vertex -> Rep (SCC vertex) x #

to :: Rep (SCC vertex) x -> SCC vertex #

Generic (Identity a) 
Instance details

Defined in Data.Functor.Identity

Associated Types

type Rep (Identity a) :: Type -> Type #

Methods

from :: Identity a -> Rep (Identity a) x #

to :: Rep (Identity a) x -> Identity a #

Generic (ZipList a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (ZipList a) :: Type -> Type #

Methods

from :: ZipList a -> Rep (ZipList a) x #

to :: Rep (ZipList a) x -> ZipList a #

Generic (Complex a) 
Instance details

Defined in Data.Complex

Associated Types

type Rep (Complex a) :: Type -> Type #

Methods

from :: Complex a -> Rep (Complex a) x #

to :: Rep (Complex a) x -> Complex a #

Generic (Min a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Min a) :: Type -> Type #

Methods

from :: Min a -> Rep (Min a) x #

to :: Rep (Min a) x -> Min a #

Generic (Max a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Max a) :: Type -> Type #

Methods

from :: Max a -> Rep (Max a) x #

to :: Rep (Max a) x -> Max a #

Generic (First a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (First a) :: Type -> Type #

Methods

from :: First a -> Rep (First a) x #

to :: Rep (First a) x -> First a #

Generic (WrappedMonoid m) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (WrappedMonoid m) :: Type -> Type #

Generic (Option a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Option a) :: Type -> Type #

Methods

from :: Option a -> Rep (Option a) x #

to :: Rep (Option a) x -> Option a #

Generic (First a) 
Instance details

Defined in Data.Monoid

Associated Types

type Rep (First a) :: Type -> Type #

Methods

from :: First a -> Rep (First a) x #

to :: Rep (First a) x -> First a #

Generic (Last a) 
Instance details

Defined in Data.Monoid

Associated Types

type Rep (Last a) :: Type -> Type #

Methods

from :: Last a -> Rep (Last a) x #

to :: Rep (Last a) x -> Last a #

Generic (Dual a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Dual a) :: Type -> Type #

Methods

from :: Dual a -> Rep (Dual a) x #

to :: Rep (Dual a) x -> Dual a #

Generic (Endo a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Endo a) :: Type -> Type #

Methods

from :: Endo a -> Rep (Endo a) x #

to :: Rep (Endo a) x -> Endo a #

Generic (Sum a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Sum a) :: Type -> Type #

Methods

from :: Sum a -> Rep (Sum a) x #

to :: Rep (Sum a) x -> Sum a #

Generic (Product a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Product a) :: Type -> Type #

Methods

from :: Product a -> Rep (Product a) x #

to :: Rep (Product a) x -> Product a #

Generic (Down a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Down a) :: Type -> Type #

Methods

from :: Down a -> Rep (Down a) x #

to :: Rep (Down a) x -> Down a #

Generic (NonEmpty a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (NonEmpty a) :: Type -> Type #

Methods

from :: NonEmpty a -> Rep (NonEmpty a) x #

to :: Rep (NonEmpty a) x -> NonEmpty a #

Generic (Tree a) 
Instance details

Defined in Data.Tree

Associated Types

type Rep (Tree a) :: Type -> Type #

Methods

from :: Tree a -> Rep (Tree a) x #

to :: Rep (Tree a) x -> Tree a #

Generic (FingerTree a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (FingerTree a) :: Type -> Type #

Methods

from :: FingerTree a -> Rep (FingerTree a) x #

to :: Rep (FingerTree a) x -> FingerTree a #

Generic (Digit a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (Digit a) :: Type -> Type #

Methods

from :: Digit a -> Rep (Digit a) x #

to :: Rep (Digit a) x -> Digit a #

Generic (Node a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (Node a) :: Type -> Type #

Methods

from :: Node a -> Rep (Node a) x #

to :: Rep (Node a) x -> Node a #

Generic (Elem a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (Elem a) :: Type -> Type #

Methods

from :: Elem a -> Rep (Elem a) x #

to :: Rep (Elem a) x -> Elem a #

Generic (ViewL a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (ViewL a) :: Type -> Type #

Methods

from :: ViewL a -> Rep (ViewL a) x #

to :: Rep (ViewL a) x -> ViewL a #

Generic (ViewR a) 
Instance details

Defined in Data.Sequence.Internal

Associated Types

type Rep (ViewR a) :: Type -> Type #

Methods

from :: ViewR a -> Rep (ViewR a) x #

to :: Rep (ViewR a) x -> ViewR a #

Generic (Finite n) 
Instance details

Defined in Data.Finite.Internal

Associated Types

type Rep (Finite n) :: Type -> Type #

Methods

from :: Finite n -> Rep (Finite n) x #

to :: Rep (Finite n) x -> Finite n #

Generic (Name l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Name l) :: Type -> Type #

Methods

from :: Name l -> Rep (Name l) x #

to :: Rep (Name l) x -> Name l #

Generic (ModuleName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ModuleName l) :: Type -> Type #

Methods

from :: ModuleName l -> Rep (ModuleName l) x #

to :: Rep (ModuleName l) x -> ModuleName l #

Generic (SpecialCon l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (SpecialCon l) :: Type -> Type #

Methods

from :: SpecialCon l -> Rep (SpecialCon l) x #

to :: Rep (SpecialCon l) x -> SpecialCon l #

Generic (QName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (QName l) :: Type -> Type #

Methods

from :: QName l -> Rep (QName l) x #

to :: Rep (QName l) x -> QName l #

Generic (IPName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (IPName l) :: Type -> Type #

Methods

from :: IPName l -> Rep (IPName l) x #

to :: Rep (IPName l) x -> IPName l #

Generic (QOp l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (QOp l) :: Type -> Type #

Methods

from :: QOp l -> Rep (QOp l) x #

to :: Rep (QOp l) x -> QOp l #

Generic (Op l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Op l) :: Type -> Type #

Methods

from :: Op l -> Rep (Op l) x #

to :: Rep (Op l) x -> Op l #

Generic (CName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (CName l) :: Type -> Type #

Methods

from :: CName l -> Rep (CName l) x #

to :: Rep (CName l) x -> CName l #

Generic (Module l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Module l) :: Type -> Type #

Methods

from :: Module l -> Rep (Module l) x #

to :: Rep (Module l) x -> Module l #

Generic (ModuleHead l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ModuleHead l) :: Type -> Type #

Methods

from :: ModuleHead l -> Rep (ModuleHead l) x #

to :: Rep (ModuleHead l) x -> ModuleHead l #

Generic (ExportSpecList l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ExportSpecList l) :: Type -> Type #

Generic (ExportSpec l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ExportSpec l) :: Type -> Type #

Methods

from :: ExportSpec l -> Rep (ExportSpec l) x #

to :: Rep (ExportSpec l) x -> ExportSpec l #

Generic (EWildcard l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (EWildcard l) :: Type -> Type #

Methods

from :: EWildcard l -> Rep (EWildcard l) x #

to :: Rep (EWildcard l) x -> EWildcard l #

Generic (Namespace l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Namespace l) :: Type -> Type #

Methods

from :: Namespace l -> Rep (Namespace l) x #

to :: Rep (Namespace l) x -> Namespace l #

Generic (ImportDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ImportDecl l) :: Type -> Type #

Methods

from :: ImportDecl l -> Rep (ImportDecl l) x #

to :: Rep (ImportDecl l) x -> ImportDecl l #

Generic (ImportSpecList l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ImportSpecList l) :: Type -> Type #

Generic (ImportSpec l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ImportSpec l) :: Type -> Type #

Methods

from :: ImportSpec l -> Rep (ImportSpec l) x #

to :: Rep (ImportSpec l) x -> ImportSpec l #

Generic (Assoc l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Assoc l) :: Type -> Type #

Methods

from :: Assoc l -> Rep (Assoc l) x #

to :: Rep (Assoc l) x -> Assoc l #

Generic (Decl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Decl l) :: Type -> Type #

Methods

from :: Decl l -> Rep (Decl l) x #

to :: Rep (Decl l) x -> Decl l #

Generic (PatternSynDirection l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (PatternSynDirection l) :: Type -> Type #

Generic (TypeEqn l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (TypeEqn l) :: Type -> Type #

Methods

from :: TypeEqn l -> Rep (TypeEqn l) x #

to :: Rep (TypeEqn l) x -> TypeEqn l #

Generic (Annotation l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Annotation l) :: Type -> Type #

Methods

from :: Annotation l -> Rep (Annotation l) x #

to :: Rep (Annotation l) x -> Annotation l #

Generic (BooleanFormula l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (BooleanFormula l) :: Type -> Type #

Generic (Role l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Role l) :: Type -> Type #

Methods

from :: Role l -> Rep (Role l) x #

to :: Rep (Role l) x -> Role l #

Generic (DataOrNew l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (DataOrNew l) :: Type -> Type #

Methods

from :: DataOrNew l -> Rep (DataOrNew l) x #

to :: Rep (DataOrNew l) x -> DataOrNew l #

Generic (InjectivityInfo l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (InjectivityInfo l) :: Type -> Type #

Generic (ResultSig l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ResultSig l) :: Type -> Type #

Methods

from :: ResultSig l -> Rep (ResultSig l) x #

to :: Rep (ResultSig l) x -> ResultSig l #

Generic (DeclHead l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (DeclHead l) :: Type -> Type #

Methods

from :: DeclHead l -> Rep (DeclHead l) x #

to :: Rep (DeclHead l) x -> DeclHead l #

Generic (InstRule l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (InstRule l) :: Type -> Type #

Methods

from :: InstRule l -> Rep (InstRule l) x #

to :: Rep (InstRule l) x -> InstRule l #

Generic (InstHead l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (InstHead l) :: Type -> Type #

Methods

from :: InstHead l -> Rep (InstHead l) x #

to :: Rep (InstHead l) x -> InstHead l #

Generic (Deriving l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Deriving l) :: Type -> Type #

Methods

from :: Deriving l -> Rep (Deriving l) x #

to :: Rep (Deriving l) x -> Deriving l #

Generic (DerivStrategy l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (DerivStrategy l) :: Type -> Type #

Generic (Binds l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Binds l) :: Type -> Type #

Methods

from :: Binds l -> Rep (Binds l) x #

to :: Rep (Binds l) x -> Binds l #

Generic (IPBind l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (IPBind l) :: Type -> Type #

Methods

from :: IPBind l -> Rep (IPBind l) x #

to :: Rep (IPBind l) x -> IPBind l #

Generic (Match l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Match l) :: Type -> Type #

Methods

from :: Match l -> Rep (Match l) x #

to :: Rep (Match l) x -> Match l #

Generic (QualConDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (QualConDecl l) :: Type -> Type #

Methods

from :: QualConDecl l -> Rep (QualConDecl l) x #

to :: Rep (QualConDecl l) x -> QualConDecl l #

Generic (ConDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ConDecl l) :: Type -> Type #

Methods

from :: ConDecl l -> Rep (ConDecl l) x #

to :: Rep (ConDecl l) x -> ConDecl l #

Generic (FieldDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (FieldDecl l) :: Type -> Type #

Methods

from :: FieldDecl l -> Rep (FieldDecl l) x #

to :: Rep (FieldDecl l) x -> FieldDecl l #

Generic (GadtDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (GadtDecl l) :: Type -> Type #

Methods

from :: GadtDecl l -> Rep (GadtDecl l) x #

to :: Rep (GadtDecl l) x -> GadtDecl l #

Generic (ClassDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ClassDecl l) :: Type -> Type #

Methods

from :: ClassDecl l -> Rep (ClassDecl l) x #

to :: Rep (ClassDecl l) x -> ClassDecl l #

Generic (InstDecl l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (InstDecl l) :: Type -> Type #

Methods

from :: InstDecl l -> Rep (InstDecl l) x #

to :: Rep (InstDecl l) x -> InstDecl l #

Generic (BangType l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (BangType l) :: Type -> Type #

Methods

from :: BangType l -> Rep (BangType l) x #

to :: Rep (BangType l) x -> BangType l #

Generic (Unpackedness l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Unpackedness l) :: Type -> Type #

Methods

from :: Unpackedness l -> Rep (Unpackedness l) x #

to :: Rep (Unpackedness l) x -> Unpackedness l #

Generic (Rhs l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Rhs l) :: Type -> Type #

Methods

from :: Rhs l -> Rep (Rhs l) x #

to :: Rep (Rhs l) x -> Rhs l #

Generic (GuardedRhs l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (GuardedRhs l) :: Type -> Type #

Methods

from :: GuardedRhs l -> Rep (GuardedRhs l) x #

to :: Rep (GuardedRhs l) x -> GuardedRhs l #

Generic (Type l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Type l) :: Type -> Type #

Methods

from :: Type l -> Rep (Type l) x #

to :: Rep (Type l) x -> Type l #

Generic (MaybePromotedName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (MaybePromotedName l) :: Type -> Type #

Generic (Promoted l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Promoted l) :: Type -> Type #

Methods

from :: Promoted l -> Rep (Promoted l) x #

to :: Rep (Promoted l) x -> Promoted l #

Generic (TyVarBind l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (TyVarBind l) :: Type -> Type #

Methods

from :: TyVarBind l -> Rep (TyVarBind l) x #

to :: Rep (TyVarBind l) x -> TyVarBind l #

Generic (Kind l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Kind l) :: Type -> Type #

Methods

from :: Kind l -> Rep (Kind l) x #

to :: Rep (Kind l) x -> Kind l #

Generic (FunDep l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (FunDep l) :: Type -> Type #

Methods

from :: FunDep l -> Rep (FunDep l) x #

to :: Rep (FunDep l) x -> FunDep l #

Generic (Context l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Context l) :: Type -> Type #

Methods

from :: Context l -> Rep (Context l) x #

to :: Rep (Context l) x -> Context l #

Generic (Asst l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Asst l) :: Type -> Type #

Methods

from :: Asst l -> Rep (Asst l) x #

to :: Rep (Asst l) x -> Asst l #

Generic (Literal l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Literal l) :: Type -> Type #

Methods

from :: Literal l -> Rep (Literal l) x #

to :: Rep (Literal l) x -> Literal l #

Generic (Sign l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Sign l) :: Type -> Type #

Methods

from :: Sign l -> Rep (Sign l) x #

to :: Rep (Sign l) x -> Sign l #

Generic (Exp l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Exp l) :: Type -> Type #

Methods

from :: Exp l -> Rep (Exp l) x #

to :: Rep (Exp l) x -> Exp l #

Generic (XName l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (XName l) :: Type -> Type #

Methods

from :: XName l -> Rep (XName l) x #

to :: Rep (XName l) x -> XName l #

Generic (XAttr l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (XAttr l) :: Type -> Type #

Methods

from :: XAttr l -> Rep (XAttr l) x #

to :: Rep (XAttr l) x -> XAttr l #

Generic (Bracket l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Bracket l) :: Type -> Type #

Methods

from :: Bracket l -> Rep (Bracket l) x #

to :: Rep (Bracket l) x -> Bracket l #

Generic (Splice l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Splice l) :: Type -> Type #

Methods

from :: Splice l -> Rep (Splice l) x #

to :: Rep (Splice l) x -> Splice l #

Generic (Safety l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Safety l) :: Type -> Type #

Methods

from :: Safety l -> Rep (Safety l) x #

to :: Rep (Safety l) x -> Safety l #

Generic (CallConv l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (CallConv l) :: Type -> Type #

Methods

from :: CallConv l -> Rep (CallConv l) x #

to :: Rep (CallConv l) x -> CallConv l #

Generic (ModulePragma l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (ModulePragma l) :: Type -> Type #

Methods

from :: ModulePragma l -> Rep (ModulePragma l) x #

to :: Rep (ModulePragma l) x -> ModulePragma l #

Generic (Overlap l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Overlap l) :: Type -> Type #

Methods

from :: Overlap l -> Rep (Overlap l) x #

to :: Rep (Overlap l) x -> Overlap l #

Generic (Activation l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Activation l) :: Type -> Type #

Methods

from :: Activation l -> Rep (Activation l) x #

to :: Rep (Activation l) x -> Activation l #

Generic (Rule l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Rule l) :: Type -> Type #

Methods

from :: Rule l -> Rep (Rule l) x #

to :: Rep (Rule l) x -> Rule l #

Generic (RuleVar l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (RuleVar l) :: Type -> Type #

Methods

from :: RuleVar l -> Rep (RuleVar l) x #

to :: Rep (RuleVar l) x -> RuleVar l #

Generic (WarningText l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (WarningText l) :: Type -> Type #

Methods

from :: WarningText l -> Rep (WarningText l) x #

to :: Rep (WarningText l) x -> WarningText l #

Generic (Pat l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Pat l) :: Type -> Type #

Methods

from :: Pat l -> Rep (Pat l) x #

to :: Rep (Pat l) x -> Pat l #

Generic (PXAttr l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (PXAttr l) :: Type -> Type #

Methods

from :: PXAttr l -> Rep (PXAttr l) x #

to :: Rep (PXAttr l) x -> PXAttr l #

Generic (RPatOp l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (RPatOp l) :: Type -> Type #

Methods

from :: RPatOp l -> Rep (RPatOp l) x #

to :: Rep (RPatOp l) x -> RPatOp l #

Generic (RPat l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (RPat l) :: Type -> Type #

Methods

from :: RPat l -> Rep (RPat l) x #

to :: Rep (RPat l) x -> RPat l #

Generic (PatField l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (PatField l) :: Type -> Type #

Methods

from :: PatField l -> Rep (PatField l) x #

to :: Rep (PatField l) x -> PatField l #

Generic (Stmt l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Stmt l) :: Type -> Type #

Methods

from :: Stmt l -> Rep (Stmt l) x #

to :: Rep (Stmt l) x -> Stmt l #

Generic (QualStmt l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (QualStmt l) :: Type -> Type #

Methods

from :: QualStmt l -> Rep (QualStmt l) x #

to :: Rep (QualStmt l) x -> QualStmt l #

Generic (FieldUpdate l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (FieldUpdate l) :: Type -> Type #

Methods

from :: FieldUpdate l -> Rep (FieldUpdate l) x #

to :: Rep (FieldUpdate l) x -> FieldUpdate l #

Generic (Alt l) 
Instance details

Defined in Language.Haskell.Exts.Syntax

Associated Types

type Rep (Alt l) :: Type -> Type #

Methods

from :: Alt l -> Rep (Alt l) x #

to :: Rep (Alt l) x -> Alt l #

Generic (Loc a) 
Instance details

Defined in Language.Haskell.Exts.SrcLoc

Associated Types

type Rep (Loc a) :: Type -> Type #

Methods

from :: Loc a -> Rep (Loc a) x #

to :: Rep (Loc a) x -> Loc a #

Generic (HistoriedResponse body) 
Instance details

Defined in Network.HTTP.Client

Associated Types

type Rep (HistoriedResponse body) :: Type -> Type #

Methods

from :: HistoriedResponse body -> Rep (HistoriedResponse body) x #

to :: Rep (HistoriedResponse body) x -> HistoriedResponse body #

Generic (ErrorItem t) 
Instance details

Defined in Text.Megaparsec.Error

Associated Types

type Rep (ErrorItem t) :: Type -> Type #

Methods

from :: ErrorItem t -> Rep (ErrorItem t) x #

to :: Rep (ErrorItem t) x -> ErrorItem t #

Generic (ErrorFancy e) 
Instance details

Defined in Text.Megaparsec.Error

Associated Types

type Rep (ErrorFancy e) :: Type -> Type #

Methods

from :: ErrorFancy e -> Rep (ErrorFancy e) x #

to :: Rep (ErrorFancy e) x -> ErrorFancy e #

Generic (State s) 
Instance details

Defined in Text.Megaparsec.State

Associated Types

type Rep (State s) :: Type -> Type #

Methods

from :: State s -> Rep (State s) x #

to :: Rep (State s) x -> State s #

Generic (PosState s) 
Instance details

Defined in Text.Megaparsec.State

Associated Types

type Rep (PosState s) :: Type -> Type #

Methods

from :: PosState s -> Rep (PosState s) x #

to :: Rep (PosState s) x -> PosState s #

Generic (Doc a) 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Associated Types

type Rep (Doc a) :: Type -> Type #

Methods

from :: Doc a -> Rep (Doc a) x #

to :: Rep (Doc a) x -> Doc a #

Generic (Either a b) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Either a b) :: Type -> Type #

Methods

from :: Either a b -> Rep (Either a b) x #

to :: Rep (Either a b) x -> Either a b #

Generic (V1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (V1 p) :: Type -> Type #

Methods

from :: V1 p -> Rep (V1 p) x #

to :: Rep (V1 p) x -> V1 p #

Generic (U1 p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (U1 p) :: Type -> Type #

Methods

from :: U1 p -> Rep (U1 p) x #

to :: Rep (U1 p) x -> U1 p #

Generic (a, b) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b) :: Type -> Type #

Methods

from :: (a, b) -> Rep (a, b) x #

to :: Rep (a, b) x -> (a, b) #

Generic (WrappedMonad m a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedMonad m a) :: Type -> Type #

Methods

from :: WrappedMonad m a -> Rep (WrappedMonad m a) x #

to :: Rep (WrappedMonad m a) x -> WrappedMonad m a #

Generic (Arg a b) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Arg a b) :: Type -> Type #

Methods

from :: Arg a b -> Rep (Arg a b) x #

to :: Rep (Arg a b) x -> Arg a b #

Generic (Proxy t) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Proxy t) :: Type -> Type #

Methods

from :: Proxy t -> Rep (Proxy t) x #

to :: Rep (Proxy t) x -> Proxy t #

Generic (ParseError s e) 
Instance details

Defined in Text.Megaparsec.Error

Associated Types

type Rep (ParseError s e) :: Type -> Type #

Methods

from :: ParseError s e -> Rep (ParseError s e) x #

to :: Rep (ParseError s e) x -> ParseError s e #

Generic (ParseErrorBundle s e) 
Instance details

Defined in Text.Megaparsec.Error

Associated Types

type Rep (ParseErrorBundle s e) :: Type -> Type #

Generic (PackageConfig_ library executable) 
Instance details

Defined in Hpack.Config

Associated Types

type Rep (PackageConfig_ library executable) :: Type -> Type #

Methods

from :: PackageConfig_ library executable -> Rep (PackageConfig_ library executable) x #

to :: Rep (PackageConfig_ library executable) x -> PackageConfig_ library executable #

Generic (Rec1 f p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Rec1 f p) :: Type -> Type #

Methods

from :: Rec1 f p -> Rep (Rec1 f p) x #

to :: Rep (Rec1 f p) x -> Rec1 f p #

Generic (URec (Ptr ()) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec (Ptr ()) p) :: Type -> Type #

Methods

from :: URec (Ptr ()) p -> Rep (URec (Ptr ()) p) x #

to :: Rep (URec (Ptr ()) p) x -> URec (Ptr ()) p #

Generic (URec Char p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Char p) :: Type -> Type #

Methods

from :: URec Char p -> Rep (URec Char p) x #

to :: Rep (URec Char p) x -> URec Char p #

Generic (URec Double p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Double p) :: Type -> Type #

Methods

from :: URec Double p -> Rep (URec Double p) x #

to :: Rep (URec Double p) x -> URec Double p #

Generic (URec Float p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Float p) :: Type -> Type #

Methods

from :: URec Float p -> Rep (URec Float p) x #

to :: Rep (URec Float p) x -> URec Float p #

Generic (URec Int p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Int p) :: Type -> Type #

Methods

from :: URec Int p -> Rep (URec Int p) x #

to :: Rep (URec Int p) x -> URec Int p #

Generic (URec Word p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Word p) :: Type -> Type #

Methods

from :: URec Word p -> Rep (URec Word p) x #

to :: Rep (URec Word p) x -> URec Word p #

Generic (a, b, c) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c) :: Type -> Type #

Methods

from :: (a, b, c) -> Rep (a, b, c) x #

to :: Rep (a, b, c) x -> (a, b, c) #

Generic (Const a b) 
Instance details

Defined in Data.Functor.Const

Associated Types

type Rep (Const a b) :: Type -> Type #

Methods

from :: Const a b -> Rep (Const a b) x #

to :: Rep (Const a b) x -> Const a b #

Generic (WrappedArrow a b c) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedArrow a b c) :: Type -> Type #

Methods

from :: WrappedArrow a b c -> Rep (WrappedArrow a b c) x #

to :: Rep (WrappedArrow a b c) x -> WrappedArrow a b c #

Generic (Ap f a) 
Instance details

Defined in Data.Monoid

Associated Types

type Rep (Ap f a) :: Type -> Type #

Methods

from :: Ap f a -> Rep (Ap f a) x #

to :: Rep (Ap f a) x -> Ap f a #

Generic (Alt f a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Alt f a) :: Type -> Type #

Methods

from :: Alt f a -> Rep (Alt f a) x #

to :: Rep (Alt f a) x -> Alt f a #

Generic (Tagged s b) 
Instance details

Defined in Data.Tagged

Associated Types

type Rep (Tagged s b) :: Type -> Type #

Methods

from :: Tagged s b -> Rep (Tagged s b) x #

to :: Rep (Tagged s b) x -> Tagged s b #

Generic (K1 i c p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (K1 i c p) :: Type -> Type #

Methods

from :: K1 i c p -> Rep (K1 i c p) x #

to :: Rep (K1 i c p) x -> K1 i c p #

Generic ((f :+: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :+: g) p) :: Type -> Type #

Methods

from :: (f :+: g) p -> Rep ((f :+: g) p) x #

to :: Rep ((f :+: g) p) x -> (f :+: g) p #

Generic ((f :*: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :*: g) p) :: Type -> Type #

Methods

from :: (f :*: g) p -> Rep ((f :*: g) p) x #

to :: Rep ((f :*: g) p) x -> (f :*: g) p #

Generic (a, b, c, d) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d) :: Type -> Type #

Methods

from :: (a, b, c, d) -> Rep (a, b, c, d) x #

to :: Rep (a, b, c, d) x -> (a, b, c, d) #

Generic (Product f g a) 
Instance details

Defined in Data.Functor.Product

Associated Types

type Rep (Product f g a) :: Type -> Type #

Methods

from :: Product f g a -> Rep (Product f g a) x #

to :: Rep (Product f g a) x -> Product f g a #

Generic (Sum f g a) 
Instance details

Defined in Data.Functor.Sum

Associated Types

type Rep (Sum f g a) :: Type -> Type #

Methods

from :: Sum f g a -> Rep (Sum f g a) x #

to :: Rep (Sum f g a) x -> Sum f g a #

Generic (CommonOptions cSources cxxSources jsSources a) 
Instance details

Defined in Hpack.Config

Associated Types

type Rep (CommonOptions cSources cxxSources jsSources a) :: Type -> Type #

Methods

from :: CommonOptions cSources cxxSources jsSources a -> Rep (CommonOptions cSources cxxSources jsSources a) x #

to :: Rep (CommonOptions cSources cxxSources jsSources a) x -> CommonOptions cSources cxxSources jsSources a #

Generic (ThenElse cSources cxxSources jsSources a) 
Instance details

Defined in Hpack.Config

Associated Types

type Rep (ThenElse cSources cxxSources jsSources a) :: Type -> Type #

Methods

from :: ThenElse cSources cxxSources jsSources a -> Rep (ThenElse cSources cxxSources jsSources a) x #

to :: Rep (ThenElse cSources cxxSources jsSources a) x -> ThenElse cSources cxxSources jsSources a #

Generic (M1 i c f p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (M1 i c f p) :: Type -> Type #

Methods

from :: M1 i c f p -> Rep (M1 i c f p) x #

to :: Rep (M1 i c f p) x -> M1 i c f p #

Generic ((f :.: g) p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep ((f :.: g) p) :: Type -> Type #

Methods

from :: (f :.: g) p -> Rep ((f :.: g) p) x #

to :: Rep ((f :.: g) p) x -> (f :.: g) p #

Generic (a, b, c, d, e) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e) :: Type -> Type #

Methods

from :: (a, b, c, d, e) -> Rep (a, b, c, d, e) x #

to :: Rep (a, b, c, d, e) x -> (a, b, c, d, e) #

Generic (Compose f g a) 
Instance details

Defined in Data.Functor.Compose

Associated Types

type Rep (Compose f g a) :: Type -> Type #

Methods

from :: Compose f g a -> Rep (Compose f g a) x #

to :: Rep (Compose f g a) x -> Compose f g a #

Generic (Joker g a b) 
Instance details

Defined in Data.Bifunctor.Joker

Associated Types

type Rep (Joker g a b) :: Type -> Type #

Methods

from :: Joker g a b -> Rep (Joker g a b) x #

to :: Rep (Joker g a b) x -> Joker g a b #

Generic (Clown f a b) 
Instance details

Defined in Data.Bifunctor.Clown

Associated Types

type Rep (Clown f a b) :: Type -> Type #

Methods

from :: Clown f a b -> Rep (Clown f a b) x #

to :: Rep (Clown f a b) x -> Clown f a b #

Generic (a, b, c, d, e, f) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e, f) :: Type -> Type #

Methods

from :: (a, b, c, d, e, f) -> Rep (a, b, c, d, e, f) x #

to :: Rep (a, b, c, d, e, f) x -> (a, b, c, d, e, f) #

Generic (Sum p q a b) 
Instance details

Defined in Data.Bifunctor.Sum

Associated Types

type Rep (Sum p q a b) :: Type -> Type #

Methods

from :: Sum p q a b -> Rep (Sum p q a b) x #

to :: Rep (Sum p q a b) x -> Sum p q a b #

Generic (Product f g a b) 
Instance details

Defined in Data.Bifunctor.Product

Associated Types

type Rep (Product f g a b) :: Type -> Type #

Methods

from :: Product f g a b -> Rep (Product f g a b) x #

to :: Rep (Product f g a b) x -> Product f g a b #

Generic (a, b, c, d, e, f, g) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (a, b, c, d, e, f, g) :: Type -> Type #

Methods

from :: (a, b, c, d, e, f, g) -> Rep (a, b, c, d, e, f, g) x #

to :: Rep (a, b, c, d, e, f, g) x -> (a, b, c, d, e, f, g) #

Generic (Tannen f p a b) 
Instance details

Defined in Data.Bifunctor.Tannen

Associated Types

type Rep (Tannen f p a b) :: Type -> Type #

Methods

from :: Tannen f p a b -> Rep (Tannen f p a b) x #

to :: Rep (Tannen f p a b) x -> Tannen f p a b #

Generic (Biff p f g a b) 
Instance details

Defined in Data.Bifunctor.Biff

Associated Types

type Rep (Biff p f g a b) :: Type -> Type #

Methods

from :: Biff p f g a b -> Rep (Biff p f g a b) x #

to :: Rep (Biff p f g a b) x -> Biff p f g a b #

class Semigroup a where #

The class of semigroups (types with an associative binary operation).

Instances should satisfy the associativity law:

Since: base-4.9.0.0

Minimal complete definition

(<>)

Methods

(<>) :: a -> a -> a infixr 6 #

An associative operation.

sconcat :: NonEmpty a -> a #

Reduce a non-empty list with <>

The default definition should be sufficient, but this can be overridden for efficiency.

stimes :: Integral b => b -> a -> a #

Repeat a value n times.

Given that this works on a Semigroup it is allowed to fail if you request 0 or fewer repetitions, and the default definition will do so.

By making this a member of the class, idempotent semigroups and monoids can upgrade this to execute in O(1) by picking stimes = stimesIdempotent or stimes = stimesIdempotentMonoid respectively.

Instances
Semigroup Ordering

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Semigroup ()

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: () -> () -> () #

sconcat :: NonEmpty () -> () #

stimes :: Integral b => b -> () -> () #

Semigroup Doc 
Instance details

Defined in Text.PrettyPrint.HughesPJ

Methods

(<>) :: Doc -> Doc -> Doc #

sconcat :: NonEmpty Doc -> Doc #

stimes :: Integral b => b -> Doc -> Doc #

Semigroup ByteString 
Instance details

Defined in Data.ByteString.Lazy.Internal

Semigroup ShortByteString 
Instance details

Defined in Data.ByteString.Short.Internal

Semigroup ByteString 
Instance details

Defined in Data.ByteString.Internal

Semigroup UnqualComponentName 
Instance details

Defined in Distribution.Types.UnqualComponentName

Semigroup ShortText 
Instance details

Defined in Distribution.Utils.ShortText

Semigroup Any

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Any -> Any -> Any #

sconcat :: NonEmpty Any -> Any #

stimes :: Integral b => b -> Any -> Any #

Semigroup All

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: All -> All -> All #

sconcat :: NonEmpty All -> All #

stimes :: Integral b => b -> All -> All #

Semigroup Builder 
Instance details

Defined in Data.ByteString.Builder.Internal

Semigroup Series 
Instance details

Defined in Data.Aeson.Encoding.Internal

Semigroup More 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

(<>) :: More -> More -> More #

sconcat :: NonEmpty More -> More #

stimes :: Integral b => b -> More -> More #

Semigroup Void

Since: base-4.9.0.0

Instance details

Defined in Data.Void

Methods

(<>) :: Void -> Void -> Void #

sconcat :: NonEmpty Void -> Void #

stimes :: Integral b => b -> Void -> Void #

Semigroup String 
Instance details

Defined in Basement.UTF8.Base

Semigroup IntSet

Since: containers-0.5.7

Instance details

Defined in Data.IntSet.Internal

Semigroup BuildTools 
Instance details

Defined in Hpack.Syntax.BuildTools

Methods

(<>) :: BuildTools -> BuildTools -> BuildTools #

sconcat :: NonEmpty BuildTools -> BuildTools #

stimes :: Integral b => b -> BuildTools -> BuildTools #

Semigroup SystemBuildTools 
Instance details

Defined in Hpack.Syntax.BuildTools

Semigroup Dependencies 
Instance details

Defined in Hpack.Syntax.Dependencies

Semigroup CookieJar 
Instance details

Defined in Network.HTTP.Client.Types

Semigroup RequestBody 
Instance details

Defined in Network.HTTP.Client.Types

Semigroup Pos 
Instance details

Defined in Text.Megaparsec.Pos

Methods

(<>) :: Pos -> Pos -> Pos #

sconcat :: NonEmpty Pos -> Pos #

stimes :: Integral b => b -> Pos -> Pos #

Semigroup ByteArray 
Instance details

Defined in Data.Primitive.ByteArray

Semigroup Empty 
Instance details

Defined in Hpack.Config

Methods

(<>) :: Empty -> Empty -> Empty #

sconcat :: NonEmpty Empty -> Empty #

stimes :: Integral b => b -> Empty -> Empty #

Semigroup ExecutableSection 
Instance details

Defined in Hpack.Config

Methods

(<>) :: ExecutableSection -> ExecutableSection -> ExecutableSection #

sconcat :: NonEmpty ExecutableSection -> ExecutableSection #

stimes :: Integral b => b -> ExecutableSection -> ExecutableSection #

Semigroup LibrarySection 
Instance details

Defined in Hpack.Config

Methods

(<>) :: LibrarySection -> LibrarySection -> LibrarySection #

sconcat :: NonEmpty LibrarySection -> LibrarySection #

stimes :: Integral b => b -> LibrarySection -> LibrarySection #

Semigroup [a]

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: [a] -> [a] -> [a] #

sconcat :: NonEmpty [a] -> [a] #

stimes :: Integral b => b -> [a] -> [a] #

Semigroup a => Semigroup (Maybe a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: Maybe a -> Maybe a -> Maybe a #

sconcat :: NonEmpty (Maybe a) -> Maybe a #

stimes :: Integral b => b -> Maybe a -> Maybe a #

Semigroup a => Semigroup (IO a)

Since: base-4.10.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: IO a -> IO a -> IO a #

sconcat :: NonEmpty (IO a) -> IO a #

stimes :: Integral b => b -> IO a -> IO a #

Semigroup p => Semigroup (Par1 p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: Par1 p -> Par1 p -> Par1 p #

sconcat :: NonEmpty (Par1 p) -> Par1 p #

stimes :: Integral b => b -> Par1 p -> Par1 p #

Semigroup (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Last a -> Last a -> Last a #

sconcat :: NonEmpty (Last a) -> Last a #

stimes :: Integral b => b -> Last a -> Last a #

Semigroup (Last' a) 
Instance details

Defined in Distribution.Compat.Semigroup

Methods

(<>) :: Last' a -> Last' a -> Last' a #

sconcat :: NonEmpty (Last' a) -> Last' a #

stimes :: Integral b => b -> Last' a -> Last' a #

Ord a => Semigroup (Set a)

Since: containers-0.5.7

Instance details

Defined in Data.Set.Internal

Methods

(<>) :: Set a -> Set a -> Set a #

sconcat :: NonEmpty (Set a) -> Set a #

stimes :: Integral b => b -> Set a -> Set a #

Semigroup a => Semigroup (Identity a)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Identity

Methods

(<>) :: Identity a -> Identity a -> Identity a #

sconcat :: NonEmpty (Identity a) -> Identity a #

stimes :: Integral b => b -> Identity a -> Identity a #

Semigroup (IResult a) 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(<>) :: IResult a -> IResult a -> IResult a #

sconcat :: NonEmpty (IResult a) -> IResult a #

stimes :: Integral b => b -> IResult a -> IResult a #

Semigroup (Result a) 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(<>) :: Result a -> Result a -> Result a #

sconcat :: NonEmpty (Result a) -> Result a #

stimes :: Integral b => b -> Result a -> Result a #

Semigroup (Parser a) 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

(<>) :: Parser a -> Parser a -> Parser a #

sconcat :: NonEmpty (Parser a) -> Parser a #

stimes :: Integral b => b -> Parser a -> Parser a #

Ord a => Semigroup (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Min a -> Min a -> Min a #

sconcat :: NonEmpty (Min a) -> Min a #

stimes :: Integral b => b -> Min a -> Min a #

Ord a => Semigroup (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Max a -> Max a -> Max a #

sconcat :: NonEmpty (Max a) -> Max a #

stimes :: Integral b => b -> Max a -> Max a #

Semigroup (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: First a -> First a -> First a #

sconcat :: NonEmpty (First a) -> First a #

stimes :: Integral b => b -> First a -> First a #

Monoid m => Semigroup (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Semigroup a => Semigroup (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Option a -> Option a -> Option a #

sconcat :: NonEmpty (Option a) -> Option a #

stimes :: Integral b => b -> Option a -> Option a #

Semigroup (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Monoid

Methods

(<>) :: First a -> First a -> First a #

sconcat :: NonEmpty (First a) -> First a #

stimes :: Integral b => b -> First a -> First a #

Semigroup (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Monoid

Methods

(<>) :: Last a -> Last a -> Last a #

sconcat :: NonEmpty (Last a) -> Last a #

stimes :: Integral b => b -> Last a -> Last a #

Semigroup a => Semigroup (Dual a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Dual a -> Dual a -> Dual a #

sconcat :: NonEmpty (Dual a) -> Dual a #

stimes :: Integral b => b -> Dual a -> Dual a #

Semigroup (Endo a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Endo a -> Endo a -> Endo a #

sconcat :: NonEmpty (Endo a) -> Endo a #

stimes :: Integral b => b -> Endo a -> Endo a #

Num a => Semigroup (Sum a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Sum a -> Sum a -> Sum a #

sconcat :: NonEmpty (Sum a) -> Sum a #

stimes :: Integral b => b -> Sum a -> Sum a #

Num a => Semigroup (Product a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Product a -> Product a -> Product a #

sconcat :: NonEmpty (Product a) -> Product a #

stimes :: Integral b => b -> Product a -> Product a #

Semigroup a => Semigroup (Down a)

Since: base-4.11.0.0

Instance details

Defined in Data.Ord

Methods

(<>) :: Down a -> Down a -> Down a #

sconcat :: NonEmpty (Down a) -> Down a #

stimes :: Integral b => b -> Down a -> Down a #

Semigroup (NonEmpty a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: NonEmpty a -> NonEmpty a -> NonEmpty a #

sconcat :: NonEmpty (NonEmpty a) -> NonEmpty a #

stimes :: Integral b => b -> NonEmpty a -> NonEmpty a #

PrimType ty => Semigroup (UArray ty) 
Instance details

Defined in Basement.UArray.Base

Methods

(<>) :: UArray ty -> UArray ty -> UArray ty #

sconcat :: NonEmpty (UArray ty) -> UArray ty #

stimes :: Integral b => b -> UArray ty -> UArray ty #

PrimType ty => Semigroup (Block ty) 
Instance details

Defined in Basement.Block.Base

Methods

(<>) :: Block ty -> Block ty -> Block ty #

sconcat :: NonEmpty (Block ty) -> Block ty #

stimes :: Integral b => b -> Block ty -> Block ty #

Semigroup (CountOf ty) 
Instance details

Defined in Basement.Types.OffsetSize

Methods

(<>) :: CountOf ty -> CountOf ty -> CountOf ty #

sconcat :: NonEmpty (CountOf ty) -> CountOf ty #

stimes :: Integral b => b -> CountOf ty -> CountOf ty #

Semigroup (IntMap a)

Since: containers-0.5.7

Instance details

Defined in Data.IntMap.Internal

Methods

(<>) :: IntMap a -> IntMap a -> IntMap a #

sconcat :: NonEmpty (IntMap a) -> IntMap a #

stimes :: Integral b => b -> IntMap a -> IntMap a #

Semigroup (Seq a)

Since: containers-0.5.7

Instance details

Defined in Data.Sequence.Internal

Methods

(<>) :: Seq a -> Seq a -> Seq a #

sconcat :: NonEmpty (Seq a) -> Seq a #

stimes :: Integral b => b -> Seq a -> Seq a #

Semigroup (DList a) 
Instance details

Defined in Data.DList

Methods

(<>) :: DList a -> DList a -> DList a #

sconcat :: NonEmpty (DList a) -> DList a #

stimes :: Integral b => b -> DList a -> DList a #

Semigroup m => Semigroup (ParseResult m) 
Instance details

Defined in Language.Haskell.Exts.ParseMonad

Semigroup (List a) 
Instance details

Defined in Data.Aeson.Config.Types

Methods

(<>) :: List a -> List a -> List a #

sconcat :: NonEmpty (List a) -> List a #

stimes :: Integral b => b -> List a -> List a #

Prim a => Semigroup (Vector a) 
Instance details

Defined in Data.Vector.Primitive

Methods

(<>) :: Vector a -> Vector a -> Vector a #

sconcat :: NonEmpty (Vector a) -> Vector a #

stimes :: Integral b => b -> Vector a -> Vector a #

Storable a => Semigroup (Vector a) 
Instance details

Defined in Data.Vector.Storable

Methods

(<>) :: Vector a -> Vector a -> Vector a #

sconcat :: NonEmpty (Vector a) -> Vector a #

stimes :: Integral b => b -> Vector a -> Vector a #

(Hashable a, Eq a) => Semigroup (HashSet a) 
Instance details

Defined in Data.HashSet

Methods

(<>) :: HashSet a -> HashSet a -> HashSet a #

sconcat :: NonEmpty (HashSet a) -> HashSet a #

stimes :: Integral b => b -> HashSet a -> HashSet a #

Semigroup (Vector a) 
Instance details

Defined in Data.Vector

Methods

(<>) :: Vector a -> Vector a -> Vector a #

sconcat :: NonEmpty (Vector a) -> Vector a #

stimes :: Integral b => b -> Vector a -> Vector a #

Semigroup (Hints t) 
Instance details

Defined in Text.Megaparsec.Internal

Methods

(<>) :: Hints t -> Hints t -> Hints t #

sconcat :: NonEmpty (Hints t) -> Hints t #

stimes :: Integral b => b -> Hints t -> Hints t #

Semigroup (Doc a) 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

(<>) :: Doc a -> Doc a -> Doc a #

sconcat :: NonEmpty (Doc a) -> Doc a #

stimes :: Integral b => b -> Doc a -> Doc a #

PrimUnlifted a => Semigroup (UnliftedArray a)

Since: primitive-0.6.4.0

Instance details

Defined in Data.Primitive.UnliftedArray

Semigroup (PrimArray a)

Since: primitive-0.6.4.0

Instance details

Defined in Data.Primitive.PrimArray

Methods

(<>) :: PrimArray a -> PrimArray a -> PrimArray a #

sconcat :: NonEmpty (PrimArray a) -> PrimArray a #

stimes :: Integral b => b -> PrimArray a -> PrimArray a #

Semigroup (SmallArray a)

Since: primitive-0.6.3.0

Instance details

Defined in Data.Primitive.SmallArray

Semigroup (Array a)

Since: primitive-0.6.3.0

Instance details

Defined in Data.Primitive.Array

Methods

(<>) :: Array a -> Array a -> Array a #

sconcat :: NonEmpty (Array a) -> Array a #

stimes :: Integral b => b -> Array a -> Array a #

Semigroup (MergeSet a) 
Instance details

Defined in Data.Set.Internal

Methods

(<>) :: MergeSet a -> MergeSet a -> MergeSet a #

sconcat :: NonEmpty (MergeSet a) -> MergeSet a #

stimes :: Integral b => b -> MergeSet a -> MergeSet a #

Semigroup b => Semigroup (a -> b)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: (a -> b) -> (a -> b) -> a -> b #

sconcat :: NonEmpty (a -> b) -> a -> b #

stimes :: Integral b0 => b0 -> (a -> b) -> a -> b #

Semigroup (Either a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Either

Methods

(<>) :: Either a b -> Either a b -> Either a b #

sconcat :: NonEmpty (Either a b) -> Either a b #

stimes :: Integral b0 => b0 -> Either a b -> Either a b #

Semigroup (V1 p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: V1 p -> V1 p -> V1 p #

sconcat :: NonEmpty (V1 p) -> V1 p #

stimes :: Integral b => b -> V1 p -> V1 p #

Semigroup (U1 p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: U1 p -> U1 p -> U1 p #

sconcat :: NonEmpty (U1 p) -> U1 p #

stimes :: Integral b => b -> U1 p -> U1 p #

(Semigroup a, Semigroup b) => Semigroup (a, b)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: (a, b) -> (a, b) -> (a, b) #

sconcat :: NonEmpty (a, b) -> (a, b) #

stimes :: Integral b0 => b0 -> (a, b) -> (a, b) #

Ord k => Semigroup (Map k v) 
Instance details

Defined in Data.Map.Internal

Methods

(<>) :: Map k v -> Map k v -> Map k v #

sconcat :: NonEmpty (Map k v) -> Map k v #

stimes :: Integral b => b -> Map k v -> Map k v #

(Eq k, Hashable k) => Semigroup (HashMap k v) 
Instance details

Defined in Data.HashMap.Base

Methods

(<>) :: HashMap k v -> HashMap k v -> HashMap k v #

sconcat :: NonEmpty (HashMap k v) -> HashMap k v #

stimes :: Integral b => b -> HashMap k v -> HashMap k v #

Semigroup (Parser i a) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

(<>) :: Parser i a -> Parser i a -> Parser i a #

sconcat :: NonEmpty (Parser i a) -> Parser i a #

stimes :: Integral b => b -> Parser i a -> Parser i a #

Semigroup (Proxy s)

Since: base-4.9.0.0

Instance details

Defined in Data.Proxy

Methods

(<>) :: Proxy s -> Proxy s -> Proxy s #

sconcat :: NonEmpty (Proxy s) -> Proxy s #

stimes :: Integral b => b -> Proxy s -> Proxy s #

(Semigroup a, Semigroup b) => Semigroup (Product a b) 
Instance details

Defined in Data.Aeson.Config.Types

Methods

(<>) :: Product a b -> Product a b -> Product a b #

sconcat :: NonEmpty (Product a b) -> Product a b #

stimes :: Integral b0 => b0 -> Product a b -> Product a b #

(Stream s, Ord e) => Semigroup (ParseError s e) 
Instance details

Defined in Text.Megaparsec.Error

Methods

(<>) :: ParseError s e -> ParseError s e -> ParseError s e #

sconcat :: NonEmpty (ParseError s e) -> ParseError s e #

stimes :: Integral b => b -> ParseError s e -> ParseError s e #

Semigroup (f p) => Semigroup (Rec1 f p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: Rec1 f p -> Rec1 f p -> Rec1 f p #

sconcat :: NonEmpty (Rec1 f p) -> Rec1 f p #

stimes :: Integral b => b -> Rec1 f p -> Rec1 f p #

(Semigroup a, Semigroup b, Semigroup c) => Semigroup (a, b, c)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: (a, b, c) -> (a, b, c) -> (a, b, c) #

sconcat :: NonEmpty (a, b, c) -> (a, b, c) #

stimes :: Integral b0 => b0 -> (a, b, c) -> (a, b, c) #

Semigroup a => Semigroup (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(<>) :: Const a b -> Const a b -> Const a b #

sconcat :: NonEmpty (Const a b) -> Const a b #

stimes :: Integral b0 => b0 -> Const a b -> Const a b #

(Applicative f, Semigroup a) => Semigroup (Ap f a)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

(<>) :: Ap f a -> Ap f a -> Ap f a #

sconcat :: NonEmpty (Ap f a) -> Ap f a #

stimes :: Integral b => b -> Ap f a -> Ap f a #

Alternative f => Semigroup (Alt f a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Alt f a -> Alt f a -> Alt f a #

sconcat :: NonEmpty (Alt f a) -> Alt f a #

stimes :: Integral b => b -> Alt f a -> Alt f a #

Semigroup a => Semigroup (Tagged s a) 
Instance details

Defined in Data.Tagged

Methods

(<>) :: Tagged s a -> Tagged s a -> Tagged s a #

sconcat :: NonEmpty (Tagged s a) -> Tagged s a #

stimes :: Integral b => b -> Tagged s a -> Tagged s a #

Semigroup c => Semigroup (K1 i c p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: K1 i c p -> K1 i c p -> K1 i c p #

sconcat :: NonEmpty (K1 i c p) -> K1 i c p #

stimes :: Integral b => b -> K1 i c p -> K1 i c p #

(Semigroup (f p), Semigroup (g p)) => Semigroup ((f :*: g) p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: (f :*: g) p -> (f :*: g) p -> (f :*: g) p #

sconcat :: NonEmpty ((f :*: g) p) -> (f :*: g) p #

stimes :: Integral b => b -> (f :*: g) p -> (f :*: g) p #

(Semigroup a, Semigroup b, Semigroup c, Semigroup d) => Semigroup (a, b, c, d)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: (a, b, c, d) -> (a, b, c, d) -> (a, b, c, d) #

sconcat :: NonEmpty (a, b, c, d) -> (a, b, c, d) #

stimes :: Integral b0 => b0 -> (a, b, c, d) -> (a, b, c, d) #

Monad m => Semigroup (ConduitT i o m ()) 
Instance details

Defined in Data.Conduit.Internal.Conduit

Methods

(<>) :: ConduitT i o m () -> ConduitT i o m () -> ConduitT i o m () #

sconcat :: NonEmpty (ConduitT i o m ()) -> ConduitT i o m () #

stimes :: Integral b => b -> ConduitT i o m () -> ConduitT i o m () #

(Stream s, Semigroup a) => Semigroup (ParsecT e s m a)

Since: megaparsec-5.3.0

Instance details

Defined in Text.Megaparsec.Internal

Methods

(<>) :: ParsecT e s m a -> ParsecT e s m a -> ParsecT e s m a #

sconcat :: NonEmpty (ParsecT e s m a) -> ParsecT e s m a #

stimes :: Integral b => b -> ParsecT e s m a -> ParsecT e s m a #

(Semigroup cSources, Semigroup cxxSources, Semigroup jsSources) => Semigroup (CommonOptions cSources cxxSources jsSources a) 
Instance details

Defined in Hpack.Config

Methods

(<>) :: CommonOptions cSources cxxSources jsSources a -> CommonOptions cSources cxxSources jsSources a -> CommonOptions cSources cxxSources jsSources a #

sconcat :: NonEmpty (CommonOptions cSources cxxSources jsSources a) -> CommonOptions cSources cxxSources jsSources a #

stimes :: Integral b => b -> CommonOptions cSources cxxSources jsSources a -> CommonOptions cSources cxxSources jsSources a #

Semigroup (f p) => Semigroup (M1 i c f p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: M1 i c f p -> M1 i c f p -> M1 i c f p #

sconcat :: NonEmpty (M1 i c f p) -> M1 i c f p #

stimes :: Integral b => b -> M1 i c f p -> M1 i c f p #

Semigroup (f (g p)) => Semigroup ((f :.: g) p)

Since: base-4.12.0.0

Instance details

Defined in GHC.Generics

Methods

(<>) :: (f :.: g) p -> (f :.: g) p -> (f :.: g) p #

sconcat :: NonEmpty ((f :.: g) p) -> (f :.: g) p #

stimes :: Integral b => b -> (f :.: g) p -> (f :.: g) p #

(Semigroup a, Semigroup b, Semigroup c, Semigroup d, Semigroup e) => Semigroup (a, b, c, d, e)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: (a, b, c, d, e) -> (a, b, c, d, e) -> (a, b, c, d, e) #

sconcat :: NonEmpty (a, b, c, d, e) -> (a, b, c, d, e) #

stimes :: Integral b0 => b0 -> (a, b, c, d, e) -> (a, b, c, d, e) #

Monad m => Semigroup (Pipe l i o u m ()) 
Instance details

Defined in Data.Conduit.Internal.Pipe

Methods

(<>) :: Pipe l i o u m () -> Pipe l i o u m () -> Pipe l i o u m () #

sconcat :: NonEmpty (Pipe l i o u m ()) -> Pipe l i o u m () #

stimes :: Integral b => b -> Pipe l i o u m () -> Pipe l i o u m () #

data Char #

The character type Char is an enumeration whose values represent Unicode (or equivalently ISO/IEC 10646) code points (i.e. characters, see http://www.unicode.org/ for details). This set extends the ISO 8859-1 (Latin-1) character set (the first 256 characters), which is itself an extension of the ASCII character set (the first 128 characters). A character literal in Haskell has type Char.

To convert a Char to or from the corresponding Int value defined by Unicode, use toEnum and fromEnum from the Enum class respectively (or equivalently ord and chr).

Instances
Bounded Char

Since: base-2.1

Instance details

Defined in GHC.Enum

Enum Char

Since: base-2.1

Instance details

Defined in GHC.Enum

Methods

succ :: Char -> Char #

pred :: Char -> Char #

toEnum :: Int -> Char #

fromEnum :: Char -> Int #

enumFrom :: Char -> [Char] #

enumFromThen :: Char -> Char -> [Char] #

enumFromTo :: Char -> Char -> [Char] #

enumFromThenTo :: Char -> Char -> Char -> [Char] #

Eq Char 
Instance details

Defined in GHC.Classes

Methods

(==) :: Char -> Char -> Bool #

(/=) :: Char -> Char -> Bool #

Data Char

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Char -> c Char #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Char #

toConstr :: Char -> Constr #

dataTypeOf :: Char -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Char) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Char) #

gmapT :: (forall b. Data b => b -> b) -> Char -> Char #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Char -> r #

gmapQ :: (forall d. Data d => d -> u) -> Char -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Char -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Char -> m Char #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Char -> m Char #

Ord Char 
Instance details

Defined in GHC.Classes

Methods

compare :: Char -> Char -> Ordering #

(<) :: Char -> Char -> Bool #

(<=) :: Char -> Char -> Bool #

(>) :: Char -> Char -> Bool #

(>=) :: Char -> Char -> Bool #

max :: Char -> Char -> Char #

min :: Char -> Char -> Char #

Read Char

Since: base-2.1

Instance details

Defined in GHC.Read

Show Char

Since: base-2.1

Instance details

Defined in GHC.Show

Methods

showsPrec :: Int -> Char -> ShowS #

show :: Char -> String #

showList :: [Char] -> ShowS #

Lift Char 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

lift :: Char -> Q Exp #

NFData Char 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Char -> () #

Hashable Char 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Char -> Int #

hash :: Char -> Int #

ToJSON Char 
Instance details

Defined in Data.Aeson.Types.ToJSON

ToJSONKey Char 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON Char 
Instance details

Defined in Data.Aeson.Types.FromJSON

FromJSONKey Char 
Instance details

Defined in Data.Aeson.Types.FromJSON

PrintfArg Char

Since: base-2.1

Instance details

Defined in Text.Printf

IsChar Char

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

toChar :: Char -> Char #

fromChar :: Char -> Char #

Storable Char

Since: base-2.1

Instance details

Defined in Foreign.Storable

Methods

sizeOf :: Char -> Int #

alignment :: Char -> Int #

peekElemOff :: Ptr Char -> Int -> IO Char #

pokeElemOff :: Ptr Char -> Int -> Char -> IO () #

peekByteOff :: Ptr b -> Int -> IO Char #

pokeByteOff :: Ptr b -> Int -> Char -> IO () #

peek :: Ptr Char -> IO Char #

poke :: Ptr Char -> Char -> IO () #

PrimType Char 
Instance details

Defined in Basement.PrimType

Associated Types

type PrimSize Char :: Nat #

PrimMemoryComparable Char 
Instance details

Defined in Basement.PrimType

Subtractive Char 
Instance details

Defined in Basement.Numerical.Subtractive

Associated Types

type Difference Char :: Type #

Methods

(-) :: Char -> Char -> Difference Char #

CurlBuffer String 
Instance details

Defined in Network.Curl

Methods

newIncoming :: IO (IO String, CStringLen -> IO ()) #

FromValue ParsePackageConfig 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser ParsePackageConfig #

Prim Char 
Instance details

Defined in Data.Primitive.Types

Unbox Char 
Instance details

Defined in Data.Vector.Unboxed.Base

Stream String 
Instance details

Defined in Text.Megaparsec.Stream

Associated Types

type Token String :: Type #

type Tokens String :: Type #

ErrorList Char 
Instance details

Defined in Control.Monad.Trans.Error

Methods

listMsg :: String -> [Char] #

Vector Vector Char 
Instance details

Defined in Data.Vector.Unboxed.Base

MVector MVector Char 
Instance details

Defined in Data.Vector.Unboxed.Base

Generic1 (URec Char :: k -> Type) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep1 (URec Char) :: k -> Type #

Methods

from1 :: URec Char a -> Rep1 (URec Char) a #

to1 :: Rep1 (URec Char) a -> URec Char a #

CurlHeader [(String, String)] 
Instance details

Defined in Network.Curl

Methods

newIncomingHeader :: IO (IO (String, [(String, String)]), CStringLen -> IO ()) #

FromValue a => FromValue (ParseCommonOptions a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseCommonOptions a) #

FromValue a => FromValue (ParseConditionalSection a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseConditionalSection a) #

FromValue a => FromValue (ParseThenElse a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseThenElse a) #

Functor (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

fmap :: (a -> b) -> URec Char a -> URec Char b #

(<$) :: a -> URec Char b -> URec Char a #

Foldable (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => URec Char m -> m #

foldMap :: Monoid m => (a -> m) -> URec Char a -> m #

foldr :: (a -> b -> b) -> b -> URec Char a -> b #

foldr' :: (a -> b -> b) -> b -> URec Char a -> b #

foldl :: (b -> a -> b) -> b -> URec Char a -> b #

foldl' :: (b -> a -> b) -> b -> URec Char a -> b #

foldr1 :: (a -> a -> a) -> URec Char a -> a #

foldl1 :: (a -> a -> a) -> URec Char a -> a #

toList :: URec Char a -> [a] #

null :: URec Char a -> Bool #

length :: URec Char a -> Int #

elem :: Eq a => a -> URec Char a -> Bool #

maximum :: Ord a => URec Char a -> a #

minimum :: Ord a => URec Char a -> a #

sum :: Num a => URec Char a -> a #

product :: Num a => URec Char a -> a #

Traversable (URec Char :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> URec Char a -> f (URec Char b) #

sequenceA :: Applicative f => URec Char (f a) -> f (URec Char a) #

mapM :: Monad m => (a -> m b) -> URec Char a -> m (URec Char b) #

sequence :: Monad m => URec Char (m a) -> m (URec Char a) #

Eq (URec Char p)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

(==) :: URec Char p -> URec Char p -> Bool #

(/=) :: URec Char p -> URec Char p -> Bool #

Ord (URec Char p)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

compare :: URec Char p -> URec Char p -> Ordering #

(<) :: URec Char p -> URec Char p -> Bool #

(<=) :: URec Char p -> URec Char p -> Bool #

(>) :: URec Char p -> URec Char p -> Bool #

(>=) :: URec Char p -> URec Char p -> Bool #

max :: URec Char p -> URec Char p -> URec Char p #

min :: URec Char p -> URec Char p -> URec Char p #

Show (URec Char p)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

showsPrec :: Int -> URec Char p -> ShowS #

show :: URec Char p -> String #

showList :: [URec Char p] -> ShowS #

Generic (URec Char p) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (URec Char p) :: Type -> Type #

Methods

from :: URec Char p -> Rep (URec Char p) x #

to :: Rep (URec Char p) x -> URec Char p #

type PrimSize Char 
Instance details

Defined in Basement.PrimType

type PrimSize Char = 4
type Difference Char 
Instance details

Defined in Basement.Numerical.Subtractive

type NatNumMaxBound Char 
Instance details

Defined in Basement.Nat

type NatNumMaxBound Char = 1114111
newtype Vector Char 
Instance details

Defined in Data.Vector.Unboxed.Base

type Tokens String 
Instance details

Defined in Text.Megaparsec.Stream

type Token String 
Instance details

Defined in Text.Megaparsec.Stream

data URec Char (p :: k)

Used for marking occurrences of Char#

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

data URec Char (p :: k) = UChar {}
newtype MVector s Char 
Instance details

Defined in Data.Vector.Unboxed.Base

newtype MVector s Char = MV_Char (MVector s Char)
type Rep1 (URec Char :: k -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

type Rep1 (URec Char :: k -> Type) = D1 (MetaData "URec" "GHC.Generics" "base" False) (C1 (MetaCons "UChar" PrefixI True) (S1 (MetaSel (Just "uChar#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UChar :: k -> Type)))
type Rep (URec Char p)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

type Rep (URec Char p) = D1 (MetaData "URec" "GHC.Generics" "base" False) (C1 (MetaCons "UChar" PrefixI True) (S1 (MetaSel (Just "uChar#") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (UChar :: Type -> Type)))

data Maybe a #

The Maybe type encapsulates an optional value. A value of type Maybe a either contains a value of type a (represented as Just a), or it is empty (represented as Nothing). Using Maybe is a good way to deal with errors or exceptional cases without resorting to drastic measures such as error.

The Maybe type is also a monad. It is a simple kind of error monad, where all errors are represented by Nothing. A richer error monad can be built using the Either type.

Constructors

Nothing 
Just a 
Instances
Monad Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

(>>=) :: Maybe a -> (a -> Maybe b) -> Maybe b #

(>>) :: Maybe a -> Maybe b -> Maybe b #

return :: a -> Maybe a #

fail :: String -> Maybe a #

Functor Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

fmap :: (a -> b) -> Maybe a -> Maybe b #

(<$) :: a -> Maybe b -> Maybe a #

MonadFail Maybe

Since: base-4.9.0.0

Instance details

Defined in Control.Monad.Fail

Methods

fail :: String -> Maybe a #

Applicative Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

pure :: a -> Maybe a #

(<*>) :: Maybe (a -> b) -> Maybe a -> Maybe b #

liftA2 :: (a -> b -> c) -> Maybe a -> Maybe b -> Maybe c #

(*>) :: Maybe a -> Maybe b -> Maybe b #

(<*) :: Maybe a -> Maybe b -> Maybe a #

Foldable Maybe

Since: base-2.1

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Maybe m -> m #

foldMap :: Monoid m => (a -> m) -> Maybe a -> m #

foldr :: (a -> b -> b) -> b -> Maybe a -> b #

foldr' :: (a -> b -> b) -> b -> Maybe a -> b #

foldl :: (b -> a -> b) -> b -> Maybe a -> b #

foldl' :: (b -> a -> b) -> b -> Maybe a -> b #

foldr1 :: (a -> a -> a) -> Maybe a -> a #

foldl1 :: (a -> a -> a) -> Maybe a -> a #

toList :: Maybe a -> [a] #

null :: Maybe a -> Bool #

length :: Maybe a -> Int #

elem :: Eq a => a -> Maybe a -> Bool #

maximum :: Ord a => Maybe a -> a #

minimum :: Ord a => Maybe a -> a #

sum :: Num a => Maybe a -> a #

product :: Num a => Maybe a -> a #

Traversable Maybe

Since: base-2.1

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Maybe a -> f (Maybe b) #

sequenceA :: Applicative f => Maybe (f a) -> f (Maybe a) #

mapM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b) #

sequence :: Monad m => Maybe (m a) -> m (Maybe a) #

MonadPlus Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mzero :: Maybe a #

mplus :: Maybe a -> Maybe a -> Maybe a #

Alternative Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

empty :: Maybe a #

(<|>) :: Maybe a -> Maybe a -> Maybe a #

some :: Maybe a -> Maybe [a] #

many :: Maybe a -> Maybe [a] #

ToJSON1 Maybe 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Maybe a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Maybe a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Maybe a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Maybe a] -> Encoding #

FromJSON1 Maybe 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Maybe a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Maybe a] #

Eq1 Maybe

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq :: (a -> b -> Bool) -> Maybe a -> Maybe b -> Bool #

Ord1 Maybe

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare :: (a -> b -> Ordering) -> Maybe a -> Maybe b -> Ordering #

Read1 Maybe

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Maybe a) #

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Maybe a] #

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Maybe a) #

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Maybe a] #

Show1 Maybe

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Maybe a -> ShowS #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Maybe a] -> ShowS #

MonadFailure Maybe 
Instance details

Defined in Basement.Monad

Associated Types

type Failure Maybe :: Type #

Methods

mFail :: Failure Maybe -> Maybe () #

NFData1 Maybe

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Maybe a -> () #

Hashable1 Maybe 
Instance details

Defined in Data.Hashable.Class

Methods

liftHashWithSalt :: (Int -> a -> Int) -> Int -> Maybe a -> Int #

FromValue ParsePackageConfig 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser ParsePackageConfig #

(Selector s, GToJSON enc arity (K1 i (Maybe a) :: Type -> Type), KeyValuePair enc pairs, Monoid pairs) => RecordToPairs enc pairs arity (S1 s (K1 i (Maybe a) :: Type -> Type)) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

recordToPairs :: Options -> ToArgs enc arity a0 -> S1 s (K1 i (Maybe a)) a0 -> pairs

(Selector s, FromJSON a) => FromRecord arity (S1 s (K1 i (Maybe a) :: Type -> Type)) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseRecord :: Options -> FromArgs arity a0 -> Object -> Parser (S1 s (K1 i (Maybe a)) a0)

Eq a => Eq (Maybe a)

Since: base-2.1

Instance details

Defined in GHC.Maybe

Methods

(==) :: Maybe a -> Maybe a -> Bool #

(/=) :: Maybe a -> Maybe a -> Bool #

Data a => Data (Maybe a)

Since: base-4.0.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Maybe a -> c (Maybe a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Maybe a) #

toConstr :: Maybe a -> Constr #

dataTypeOf :: Maybe a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Maybe a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Maybe a)) #

gmapT :: (forall b. Data b => b -> b) -> Maybe a -> Maybe a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Maybe a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Maybe a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Maybe a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Maybe a -> m (Maybe a) #

Ord a => Ord (Maybe a)

Since: base-2.1

Instance details

Defined in GHC.Maybe

Methods

compare :: Maybe a -> Maybe a -> Ordering #

(<) :: Maybe a -> Maybe a -> Bool #

(<=) :: Maybe a -> Maybe a -> Bool #

(>) :: Maybe a -> Maybe a -> Bool #

(>=) :: Maybe a -> Maybe a -> Bool #

max :: Maybe a -> Maybe a -> Maybe a #

min :: Maybe a -> Maybe a -> Maybe a #

Read a => Read (Maybe a)

Since: base-2.1

Instance details

Defined in GHC.Read

Show a => Show (Maybe a)

Since: base-2.1

Instance details

Defined in GHC.Show

Methods

showsPrec :: Int -> Maybe a -> ShowS #

show :: Maybe a -> String #

showList :: [Maybe a] -> ShowS #

Generic (Maybe a) 
Instance details

Defined in GHC.Generics

Associated Types

type Rep (Maybe a) :: Type -> Type #

Methods

from :: Maybe a -> Rep (Maybe a) x #

to :: Rep (Maybe a) x -> Maybe a #

Semigroup a => Semigroup (Maybe a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

(<>) :: Maybe a -> Maybe a -> Maybe a #

sconcat :: NonEmpty (Maybe a) -> Maybe a #

stimes :: Integral b => b -> Maybe a -> Maybe a #

Semigroup a => Monoid (Maybe a)

Lift a semigroup into Maybe forming a Monoid according to http://en.wikipedia.org/wiki/Monoid: "Any semigroup S may be turned into a monoid simply by adjoining an element e not in S and defining e*e = e and e*s = s = s*e for all s ∈ S."

Since 4.11.0: constraint on inner a value generalised from Monoid to Semigroup.

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mempty :: Maybe a #

mappend :: Maybe a -> Maybe a -> Maybe a #

mconcat :: [Maybe a] -> Maybe a #

Lift a => Lift (Maybe a) 
Instance details

Defined in Language.Haskell.TH.Syntax

Methods

lift :: Maybe a -> Q Exp #

NFData a => NFData (Maybe a) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Maybe a -> () #

Hashable a => Hashable (Maybe a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Maybe a -> Int #

hash :: Maybe a -> Int #

ToJSON a => ToJSON (Maybe a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (Maybe a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

SingKind a => SingKind (Maybe a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Associated Types

type DemoteRep (Maybe a) :: Type

Methods

fromSing :: Sing a0 -> DemoteRep (Maybe a)

FromValue a => FromValue (ParseCommonOptions a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseCommonOptions a) #

FromValue a => FromValue (ParseConditionalSection a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseConditionalSection a) #

FromValue a => FromValue (ParseThenElse a) 
Instance details

Defined in Hpack.Config

Methods

fromValue :: Value -> Parser (ParseThenElse a) #

Generic1 Maybe 
Instance details

Defined in GHC.Generics

Associated Types

type Rep1 Maybe :: k -> Type #

Methods

from1 :: Maybe a -> Rep1 Maybe a #

to1 :: Rep1 Maybe a -> Maybe a #

SingI (Nothing :: Maybe a)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

sing :: Sing Nothing

SingI a2 => SingI (Just a2 :: Maybe a1)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

sing :: Sing (Just a2)

type Failure Maybe 
Instance details

Defined in Basement.Monad

type Failure Maybe = ()
type Rep (Maybe a)

Since: base-4.6.0.0

Instance details

Defined in GHC.Generics

type Rep (Maybe a) = D1 (MetaData "Maybe" "GHC.Maybe" "base" False) (C1 (MetaCons "Nothing" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "Just" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
data Sing (b :: Maybe a) 
Instance details

Defined in GHC.Generics

data Sing (b :: Maybe a) where
type DemoteRep (Maybe a) 
Instance details

Defined in GHC.Generics

type DemoteRep (Maybe a) = Maybe (DemoteRep a)
type Rep1 Maybe

Since: base-4.6.0.0

Instance details

Defined in GHC.Generics

type Type = Type #

The kind of types with values. For example Int :: Type.

data Constraint #

The kind of constraints, like Show a

newtype Last a #

Use Option (Last a) to get the behavior of Last from Data.Monoid

Constructors

Last 

Fields

Instances
Monad Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Last a -> (a -> Last b) -> Last b #

(>>) :: Last a -> Last b -> Last b #

return :: a -> Last a #

fail :: String -> Last a #

Functor Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Last a -> Last b #

(<$) :: a -> Last b -> Last a #

MonadFix Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mfix :: (a -> Last a) -> Last a #

Applicative Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Last a #

(<*>) :: Last (a -> b) -> Last a -> Last b #

liftA2 :: (a -> b -> c) -> Last a -> Last b -> Last c #

(*>) :: Last a -> Last b -> Last b #

(<*) :: Last a -> Last b -> Last a #

Foldable Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Last m -> m #

foldMap :: Monoid m => (a -> m) -> Last a -> m #

foldr :: (a -> b -> b) -> b -> Last a -> b #

foldr' :: (a -> b -> b) -> b -> Last a -> b #

foldl :: (b -> a -> b) -> b -> Last a -> b #

foldl' :: (b -> a -> b) -> b -> Last a -> b #

foldr1 :: (a -> a -> a) -> Last a -> a #

foldl1 :: (a -> a -> a) -> Last a -> a #

toList :: Last a -> [a] #

null :: Last a -> Bool #

length :: Last a -> Int #

elem :: Eq a => a -> Last a -> Bool #

maximum :: Ord a => Last a -> a #

minimum :: Ord a => Last a -> a #

sum :: Num a => Last a -> a #

product :: Num a => Last a -> a #

Traversable Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Last a -> f (Last b) #

sequenceA :: Applicative f => Last (f a) -> f (Last a) #

mapM :: Monad m => (a -> m b) -> Last a -> m (Last b) #

sequence :: Monad m => Last (m a) -> m (Last a) #

ToJSON1 Last 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Last a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Last a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Last a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Last a] -> Encoding #

FromJSON1 Last 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Last a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Last a] #

NFData1 Last

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Last a -> () #

Bounded a => Bounded (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

minBound :: Last a #

maxBound :: Last a #

Enum a => Enum (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

succ :: Last a -> Last a #

pred :: Last a -> Last a #

toEnum :: Int -> Last a #

fromEnum :: Last a -> Int #

enumFrom :: Last a -> [Last a] #

enumFromThen :: Last a -> Last a -> [Last a] #

enumFromTo :: Last a -> Last a -> [Last a] #

enumFromThenTo :: Last a -> Last a -> Last a -> [Last a] #

Eq a => Eq (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Last a -> Last a -> Bool #

(/=) :: Last a -> Last a -> Bool #

Data a => Data (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Last a -> c (Last a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Last a) #

toConstr :: Last a -> Constr #

dataTypeOf :: Last a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Last a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Last a)) #

gmapT :: (forall b. Data b => b -> b) -> Last a -> Last a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Last a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Last a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Last a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Last a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Last a -> m (Last a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Last a -> m (Last a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Last a -> m (Last a) #

Ord a => Ord (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Last a -> Last a -> Ordering #

(<) :: Last a -> Last a -> Bool #

(<=) :: Last a -> Last a -> Bool #

(>) :: Last a -> Last a -> Bool #

(>=) :: Last a -> Last a -> Bool #

max :: Last a -> Last a -> Last a #

min :: Last a -> Last a -> Last a #

Read a => Read (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show a => Show (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Last a -> ShowS #

show :: Last a -> String #

showList :: [Last a] -> ShowS #

Generic (Last a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Last a) :: Type -> Type #

Methods

from :: Last a -> Rep (Last a) x #

to :: Rep (Last a) x -> Last a #

Semigroup (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Last a -> Last a -> Last a #

sconcat :: NonEmpty (Last a) -> Last a #

stimes :: Integral b => b -> Last a -> Last a #

NFData a => NFData (Last a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Last a -> () #

Hashable a => Hashable (Last a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Last a -> Int #

hash :: Last a -> Int #

ToJSON a => ToJSON (Last a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (Last a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Generic1 Last 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 Last :: k -> Type #

Methods

from1 :: Last a -> Rep1 Last a #

to1 :: Rep1 Last a -> Last a #

type Rep (Last a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (Last a) = D1 (MetaData "Last" "Data.Semigroup" "base" True) (C1 (MetaCons "Last" PrefixI True) (S1 (MetaSel (Just "getLast") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Last

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 Last = D1 (MetaData "Last" "Data.Semigroup" "base" True) (C1 (MetaCons "Last" PrefixI True) (S1 (MetaSel (Just "getLast") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

class NFData a where #

A class of types that can be fully evaluated.

Since: deepseq-1.1.0.0

Minimal complete definition

Nothing

Methods

rnf :: a -> () #

rnf should reduce its argument to normal form (that is, fully evaluate all sub-components), and then return '()'.

Generic NFData deriving

Starting with GHC 7.2, you can automatically derive instances for types possessing a Generic instance.

Note: Generic1 can be auto-derived starting with GHC 7.4

{-# LANGUAGE DeriveGeneric #-}

import GHC.Generics (Generic, Generic1)
import Control.DeepSeq

data Foo a = Foo a String
             deriving (Eq, Generic, Generic1)

instance NFData a => NFData (Foo a)
instance NFData1 Foo

data Colour = Red | Green | Blue
              deriving Generic

instance NFData Colour

Starting with GHC 7.10, the example above can be written more concisely by enabling the new DeriveAnyClass extension:

{-# LANGUAGE DeriveGeneric, DeriveAnyClass #-}

import GHC.Generics (Generic)
import Control.DeepSeq

data Foo a = Foo a String
             deriving (Eq, Generic, Generic1, NFData, NFData1)

data Colour = Red | Green | Blue
              deriving (Generic, NFData)

Compatibility with previous deepseq versions

Prior to version 1.4.0.0, the default implementation of the rnf method was defined as

rnf a = seq a ()

However, starting with deepseq-1.4.0.0, the default implementation is based on DefaultSignatures allowing for more accurate auto-derived NFData instances. If you need the previously used exact default rnf method implementation semantics, use

instance NFData Colour where rnf x = seq x ()

or alternatively

instance NFData Colour where rnf = rwhnf

or

{-# LANGUAGE BangPatterns #-}
instance NFData Colour where rnf !_ = ()
Instances
NFData Bool 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Bool -> () #

NFData Char 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Char -> () #

NFData Double 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Double -> () #

NFData Float 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Float -> () #

NFData Int 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Int -> () #

NFData Int8 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Int8 -> () #

NFData Int16 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Int16 -> () #

NFData Int32 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Int32 -> () #

NFData Int64 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Int64 -> () #

NFData Integer 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Integer -> () #

NFData Natural

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Natural -> () #

NFData Ordering 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Ordering -> () #

NFData Word 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Word -> () #

NFData Word8 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Word8 -> () #

NFData Word16 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Word16 -> () #

NFData Word32 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Word32 -> () #

NFData Word64 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Word64 -> () #

NFData CallStack

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CallStack -> () #

NFData () 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: () -> () #

NFData TyCon

NOTE: Prior to deepseq-1.4.4.0 this instance was only defined for base-4.8.0.0 and later.

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: TyCon -> () #

NFData Doc 
Instance details

Defined in Text.PrettyPrint.HughesPJ

Methods

rnf :: Doc -> () #

NFData ShortTextLst 
Instance details

Defined in Distribution.ModuleName

Methods

rnf :: ShortTextLst -> () #

NFData Version

Since: deepseq-1.3.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Version -> () #

NFData ByteString 
Instance details

Defined in Data.ByteString.Lazy.Internal

Methods

rnf :: ByteString -> () #

NFData ShortByteString 
Instance details

Defined in Data.ByteString.Short.Internal

Methods

rnf :: ShortByteString -> () #

NFData ByteString 
Instance details

Defined in Data.ByteString.Internal

Methods

rnf :: ByteString -> () #

NFData LegacyExeDependency 
Instance details

Defined in Distribution.Types.LegacyExeDependency

Methods

rnf :: LegacyExeDependency -> () #

NFData MungedPackageId 
Instance details

Defined in Distribution.Types.MungedPackageId

Methods

rnf :: MungedPackageId -> () #

NFData MungedPackageName 
Instance details

Defined in Distribution.Types.MungedPackageName

Methods

rnf :: MungedPackageName -> () #

NFData Dependency 
Instance details

Defined in Distribution.Types.Dependency

Methods

rnf :: Dependency -> () #

NFData ExeDependency 
Instance details

Defined in Distribution.Types.ExeDependency

Methods

rnf :: ExeDependency -> () #

NFData Module 
Instance details

Defined in Distribution.Types.Module

Methods

rnf :: Module -> () #

NFData UnitId 
Instance details

Defined in Distribution.Types.UnitId

Methods

rnf :: UnitId -> () #

NFData DefUnitId 
Instance details

Defined in Distribution.Types.UnitId

Methods

rnf :: DefUnitId -> () #

NFData PackageIdentifier 
Instance details

Defined in Distribution.Types.PackageId

Methods

rnf :: PackageIdentifier -> () #

NFData UnqualComponentName 
Instance details

Defined in Distribution.Types.UnqualComponentName

Methods

rnf :: UnqualComponentName -> () #

NFData PackageName 
Instance details

Defined in Distribution.Types.PackageName

Methods

rnf :: PackageName -> () #

NFData CompilerFlavor 
Instance details

Defined in Distribution.Compiler

Methods

rnf :: CompilerFlavor -> () #

NFData CompilerId 
Instance details

Defined in Distribution.Compiler

Methods

rnf :: CompilerId -> () #

NFData Language 
Instance details

Defined in Language.Haskell.Extension

Methods

rnf :: Language -> () #

NFData Extension 
Instance details

Defined in Language.Haskell.Extension

Methods

rnf :: Extension -> () #

NFData KnownExtension 
Instance details

Defined in Language.Haskell.Extension

Methods

rnf :: KnownExtension -> () #

NFData License 
Instance details

Defined in Distribution.License

Methods

rnf :: License -> () #

NFData ModuleName 
Instance details

Defined in Distribution.ModuleName

Methods

rnf :: ModuleName -> () #

NFData License 
Instance details

Defined in Distribution.SPDX.License

Methods

rnf :: License -> () #

NFData LicenseExpression 
Instance details

Defined in Distribution.SPDX.LicenseExpression

Methods

rnf :: LicenseExpression -> () #

NFData SimpleLicenseExpression 
Instance details

Defined in Distribution.SPDX.LicenseExpression

Methods

rnf :: SimpleLicenseExpression -> () #

NFData LicenseExceptionId 
Instance details

Defined in Distribution.SPDX.LicenseExceptionId

Methods

rnf :: LicenseExceptionId -> () #

NFData LicenseId 
Instance details

Defined in Distribution.SPDX.LicenseId

Methods

rnf :: LicenseId -> () #

NFData LicenseRef 
Instance details

Defined in Distribution.SPDX.LicenseReference

Methods

rnf :: LicenseRef -> () #

NFData AbiHash 
Instance details

Defined in Distribution.Types.AbiHash

Methods

rnf :: AbiHash -> () #

NFData ComponentId 
Instance details

Defined in Distribution.Types.ComponentId

Methods

rnf :: ComponentId -> () #

NFData PkgconfigName 
Instance details

Defined in Distribution.Types.PkgconfigName

Methods

rnf :: PkgconfigName -> () #

NFData VersionRange 
Instance details

Defined in Distribution.Types.VersionRange

Methods

rnf :: VersionRange -> () #

NFData Version 
Instance details

Defined in Distribution.Types.Version

Methods

rnf :: Version -> () #

NFData ShortText 
Instance details

Defined in Distribution.Utils.ShortText

Methods

rnf :: ShortText -> () #

NFData PError 
Instance details

Defined in Distribution.Parsec.Common

Methods

rnf :: PError -> () #

NFData PWarnType 
Instance details

Defined in Distribution.Parsec.Common

Methods

rnf :: PWarnType -> () #

NFData PWarning 
Instance details

Defined in Distribution.Parsec.Common

Methods

rnf :: PWarning -> () #

NFData Position 
Instance details

Defined in Distribution.Parsec.Common

Methods

rnf :: Position -> () #

NFData Any

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Any -> () #

NFData All

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: All -> () #

NFData Scientific 
Instance details

Defined in Data.Scientific

Methods

rnf :: Scientific -> () #

NFData JSONPathElement 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

rnf :: JSONPathElement -> () #

NFData Value 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

rnf :: Value -> () #

NFData ThreadId

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: ThreadId -> () #

NFData Void

Defined as rnf = absurd.

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Void -> () #

NFData Unique

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Unique -> () #

NFData ExitCode

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: ExitCode -> () #

NFData MaskingState

Since: deepseq-1.4.4.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: MaskingState -> () #

NFData TypeRep

NOTE: Prior to deepseq-1.4.4.0 this instance was only defined for base-4.8.0.0 and later.

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: TypeRep -> () #

NFData CChar

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CChar -> () #

NFData CSChar

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CSChar -> () #

NFData CUChar

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUChar -> () #

NFData CShort

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CShort -> () #

NFData CUShort

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUShort -> () #

NFData CInt

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CInt -> () #

NFData CUInt

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUInt -> () #

NFData CLong

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CLong -> () #

NFData CULong

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CULong -> () #

NFData CLLong

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CLLong -> () #

NFData CULLong

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CULLong -> () #

NFData CBool

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CBool -> () #

NFData CFloat

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CFloat -> () #

NFData CDouble

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CDouble -> () #

NFData CPtrdiff

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CPtrdiff -> () #

NFData CSize

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CSize -> () #

NFData CWchar

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CWchar -> () #

NFData CSigAtomic

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CSigAtomic -> () #

NFData CClock

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CClock -> () #

NFData CTime

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CTime -> () #

NFData CUSeconds

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUSeconds -> () #

NFData CSUSeconds

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CSUSeconds -> () #

NFData CFile

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CFile -> () #

NFData CFpos

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CFpos -> () #

NFData CJmpBuf

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CJmpBuf -> () #

NFData CIntPtr

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CIntPtr -> () #

NFData CUIntPtr

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUIntPtr -> () #

NFData CIntMax

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CIntMax -> () #

NFData CUIntMax

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: CUIntMax -> () #

NFData Fingerprint

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Fingerprint -> () #

NFData SrcLoc

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: SrcLoc -> () #

NFData IntSet 
Instance details

Defined in Data.IntSet.Internal

Methods

rnf :: IntSet -> () #

NFData SharedSecret 
Instance details

Defined in Crypto.ECC

Methods

rnf :: SharedSecret -> () #

NFData URI 
Instance details

Defined in Network.URI

Methods

rnf :: URI -> () #

NFData Pos 
Instance details

Defined in Text.Megaparsec.Pos

Methods

rnf :: Pos -> () #

NFData InvalidPosException 
Instance details

Defined in Text.Megaparsec.Pos

Methods

rnf :: InvalidPosException -> () #

NFData SourcePos 
Instance details

Defined in Text.Megaparsec.Pos

Methods

rnf :: SourcePos -> () #

NFData URIAuth 
Instance details

Defined in Network.URI

Methods

rnf :: URIAuth -> () #

NFData TextDetails 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

rnf :: TextDetails -> () #

NFData ZonedTime 
Instance details

Defined in Data.Time.LocalTime.Internal.ZonedTime

Methods

rnf :: ZonedTime -> () #

NFData LocalTime 
Instance details

Defined in Data.Time.LocalTime.Internal.LocalTime

Methods

rnf :: LocalTime -> () #

NFData UUID 
Instance details

Defined in Data.UUID.Types.Internal

Methods

rnf :: UUID -> () #

NFData ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Methods

rnf :: ChallengeError -> () #

NFData a => NFData [a] 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: [a] -> () #

NFData a => NFData (Maybe a) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Maybe a -> () #

NFData a => NFData (Ratio a) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Ratio a -> () #

NFData (Ptr a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Ptr a -> () #

NFData (FunPtr a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: FunPtr a -> () #

NFData a => NFData (Last a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Last a -> () #

NFData a => NFData (SCC a) 
Instance details

Defined in Data.Graph

Methods

rnf :: SCC a -> () #

NFData a => NFData (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

rnf :: Set a -> () #

NFData a => NFData (Identity a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Identity a -> () #

NFData a => NFData (ZipList a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: ZipList a -> () #

NFData a => NFData (IResult a) 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

rnf :: IResult a -> () #

NFData a => NFData (Result a) 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

rnf :: Result a -> () #

NFData a => NFData (Complex a) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Complex a -> () #

NFData (Fixed a)

Since: deepseq-1.3.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Fixed a -> () #

NFData a => NFData (Min a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Min a -> () #

NFData a => NFData (Max a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Max a -> () #

NFData a => NFData (First a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: First a -> () #

NFData m => NFData (WrappedMonoid m)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: WrappedMonoid m -> () #

NFData a => NFData (Option a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Option a -> () #

NFData (StableName a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: StableName a -> () #

NFData (IORef a)

NOTE: Only strict in the reference and not the referenced value.

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: IORef a -> () #

NFData a => NFData (First a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: First a -> () #

NFData a => NFData (Last a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Last a -> () #

NFData a => NFData (Dual a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Dual a -> () #

NFData a => NFData (Sum a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Sum a -> () #

NFData a => NFData (Product a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Product a -> () #

NFData a => NFData (Down a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Down a -> () #

NFData (MVar a)

NOTE: Only strict in the reference and not the referenced value.

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: MVar a -> () #

NFData a => NFData (NonEmpty a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: NonEmpty a -> () #

NFData a => NFData (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

rnf :: IntMap a -> () #

NFData a => NFData (Tree a) 
Instance details

Defined in Data.Tree

Methods

rnf :: Tree a -> () #

NFData a => NFData (Seq a) 
Instance details

Defined in Data.Sequence.Internal

Methods

rnf :: Seq a -> () #

NFData a => NFData (FingerTree a) 
Instance details

Defined in Data.Sequence.Internal

Methods

rnf :: FingerTree a -> () #

NFData a => NFData (Digit a) 
Instance details

Defined in Data.Sequence.Internal

Methods

rnf :: Digit a -> () #

NFData a => NFData (Node a) 
Instance details

Defined in Data.Sequence.Internal

Methods

rnf :: Node a -> () #

NFData a => NFData (Elem a) 
Instance details

Defined in Data.Sequence.Internal

Methods

rnf :: Elem a -> () #

NFData (Context a) 
Instance details

Defined in Crypto.Hash.Types

Methods

rnf :: Context a -> () #

NFData (Digest a) 
Instance details

Defined in Crypto.Hash.Types

Methods

rnf :: Digest a -> () #

NFData a => NFData (DList a) 
Instance details

Defined in Data.DList

Methods

rnf :: DList a -> () #

NFData (Finite n) 
Instance details

Defined in Data.Finite.Internal

Methods

rnf :: Finite n -> () #

NFData a => NFData (Hashed a) 
Instance details

Defined in Data.Hashable.Class

Methods

rnf :: Hashed a -> () #

NFData (Vector a) 
Instance details

Defined in Data.Vector.Primitive

Methods

rnf :: Vector a -> () #

NFData (Vector a) 
Instance details

Defined in Data.Vector.Storable

Methods

rnf :: Vector a -> () #

NFData (Vector a) 
Instance details

Defined in Data.Vector.Unboxed.Base

Methods

rnf :: Vector a -> () #

NFData a => NFData (HashSet a) 
Instance details

Defined in Data.HashSet

Methods

rnf :: HashSet a -> () #

NFData a => NFData (Vector a) 
Instance details

Defined in Data.Vector

Methods

rnf :: Vector a -> () #

NFData t => NFData (ErrorItem t) 
Instance details

Defined in Text.Megaparsec.Error

Methods

rnf :: ErrorItem t -> () #

NFData a => NFData (ErrorFancy a) 
Instance details

Defined in Text.Megaparsec.Error

Methods

rnf :: ErrorFancy a -> () #

NFData s => NFData (State s) 
Instance details

Defined in Text.Megaparsec.State

Methods

rnf :: State s -> () #

NFData s => NFData (PosState s) 
Instance details

Defined in Text.Megaparsec.State

Methods

rnf :: PosState s -> () #

NFData a => NFData (Doc a) 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

rnf :: Doc a -> () #

NFData a => NFData (AnnotDetails a) 
Instance details

Defined in Text.PrettyPrint.Annotated.HughesPJ

Methods

rnf :: AnnotDetails a -> () #

NFData (a -> b)

This instance is for convenience and consistency with seq. This assumes that WHNF is equivalent to NF for functions.

Since: deepseq-1.3.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a -> b) -> () #

(NFData a, NFData b) => NFData (Either a b) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Either a b -> () #

(NFData a, NFData b) => NFData (a, b) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a, b) -> () #

(NFData k, NFData a) => NFData (Map k a) 
Instance details

Defined in Data.Map.Internal

Methods

rnf :: Map k a -> () #

(NFData k, NFData v) => NFData (HashMap k v) 
Instance details

Defined in Data.HashMap.Base

Methods

rnf :: HashMap k v -> () #

(NFData a, NFData b) => NFData (Array a b) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: Array a b -> () #

(NFData i, NFData r) => NFData (IResult i r) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

rnf :: IResult i r -> () #

(NFData a, NFData b) => NFData (Arg a b)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Arg a b -> () #

NFData (Proxy a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Proxy a -> () #

NFData (STRef s a)

NOTE: Only strict in the reference and not the referenced value.

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: STRef s a -> () #

(NFData (Token s), NFData e) => NFData (ParseError s e) 
Instance details

Defined in Text.Megaparsec.Error

Methods

rnf :: ParseError s e -> () #

(NFData s, NFData (Token s), NFData e) => NFData (ParseErrorBundle s e) 
Instance details

Defined in Text.Megaparsec.Error

Methods

rnf :: ParseErrorBundle s e -> () #

(NFData k, NFData v) => NFData (Leaf k v) 
Instance details

Defined in Data.HashMap.Base

Methods

rnf :: Leaf k v -> () #

NFData (MVector s a) 
Instance details

Defined in Data.Vector.Unboxed.Base

Methods

rnf :: MVector s a -> () #

(NFData a1, NFData a2, NFData a3) => NFData (a1, a2, a3) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3) -> () #

NFData a => NFData (Const a b)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Const a b -> () #

NFData (a :~: b)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a :~: b) -> () #

NFData b => NFData (Tagged s b) 
Instance details

Defined in Data.Tagged

Methods

rnf :: Tagged s b -> () #

(NFData a1, NFData a2, NFData a3, NFData a4) => NFData (a1, a2, a3, a4) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4) -> () #

(NFData1 f, NFData1 g, NFData a) => NFData (Product f g a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Product f g a -> () #

(NFData1 f, NFData1 g, NFData a) => NFData (Sum f g a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Sum f g a -> () #

NFData (a :~~: b)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a :~~: b) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5) => NFData (a1, a2, a3, a4, a5) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4, a5) -> () #

(NFData1 f, NFData1 g, NFData a) => NFData (Compose f g a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Compose f g a -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6) => NFData (a1, a2, a3, a4, a5, a6) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4, a5, a6) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7) => NFData (a1, a2, a3, a4, a5, a6, a7) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4, a5, a6, a7) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7, NFData a8) => NFData (a1, a2, a3, a4, a5, a6, a7, a8) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4, a5, a6, a7, a8) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7, NFData a8, NFData a9) => NFData (a1, a2, a3, a4, a5, a6, a7, a8, a9) 
Instance details

Defined in Control.DeepSeq

Methods

rnf :: (a1, a2, a3, a4, a5, a6, a7, a8, a9) -> () #

data Map k a #

A Map from keys k to values a.

Instances
Eq2 Map

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftEq2 :: (a -> b -> Bool) -> (c -> d -> Bool) -> Map a c -> Map b d -> Bool #

Ord2 Map

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftCompare2 :: (a -> b -> Ordering) -> (c -> d -> Ordering) -> Map a c -> Map b d -> Ordering #

Show2 Map

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftShowsPrec2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> Int -> Map a b -> ShowS #

liftShowList2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> [Map a b] -> ShowS #

Functor (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

fmap :: (a -> b) -> Map k a -> Map k b #

(<$) :: a -> Map k b -> Map k a #

Foldable (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

fold :: Monoid m => Map k m -> m #

foldMap :: Monoid m => (a -> m) -> Map k a -> m #

foldr :: (a -> b -> b) -> b -> Map k a -> b #

foldr' :: (a -> b -> b) -> b -> Map k a -> b #

foldl :: (b -> a -> b) -> b -> Map k a -> b #

foldl' :: (b -> a -> b) -> b -> Map k a -> b #

foldr1 :: (a -> a -> a) -> Map k a -> a #

foldl1 :: (a -> a -> a) -> Map k a -> a #

toList :: Map k a -> [a] #

null :: Map k a -> Bool #

length :: Map k a -> Int #

elem :: Eq a => a -> Map k a -> Bool #

maximum :: Ord a => Map k a -> a #

minimum :: Ord a => Map k a -> a #

sum :: Num a => Map k a -> a #

product :: Num a => Map k a -> a #

Traversable (Map k) 
Instance details

Defined in Data.Map.Internal

Methods

traverse :: Applicative f => (a -> f b) -> Map k a -> f (Map k b) #

sequenceA :: Applicative f => Map k (f a) -> f (Map k a) #

mapM :: Monad m => (a -> m b) -> Map k a -> m (Map k b) #

sequence :: Monad m => Map k (m a) -> m (Map k a) #

ToJSONKey k => ToJSON1 (Map k) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Map k a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Map k a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Map k a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Map k a] -> Encoding #

(FromJSONKey k, Ord k) => FromJSON1 (Map k) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Map k a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Map k a] #

Eq k => Eq1 (Map k)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftEq :: (a -> b -> Bool) -> Map k a -> Map k b -> Bool #

Ord k => Ord1 (Map k)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftCompare :: (a -> b -> Ordering) -> Map k a -> Map k b -> Ordering #

(Ord k, Read k) => Read1 (Map k)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (Map k a) #

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [Map k a] #

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (Map k a) #

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [Map k a] #

Show k => Show1 (Map k)

Since: containers-0.5.9

Instance details

Defined in Data.Map.Internal

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Map k a -> ShowS #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Map k a] -> ShowS #

Ord k => IsList (Map k v)

Since: containers-0.5.6.2

Instance details

Defined in Data.Map.Internal

Associated Types

type Item (Map k v) :: Type #

Methods

fromList :: [Item (Map k v)] -> Map k v #

fromListN :: Int -> [Item (Map k v)] -> Map k v #

toList :: Map k v -> [Item (Map k v)] #

(Eq k, Eq a) => Eq (Map k a) 
Instance details

Defined in Data.Map.Internal

Methods

(==) :: Map k a -> Map k a -> Bool #

(/=) :: Map k a -> Map k a -> Bool #

(Data k, Data a, Ord k) => Data (Map k a) 
Instance details

Defined in Data.Map.Internal

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Map k a -> c (Map k a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Map k a) #

toConstr :: Map k a -> Constr #

dataTypeOf :: Map k a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Map k a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Map k a)) #

gmapT :: (forall b. Data b => b -> b) -> Map k a -> Map k a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Map k a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Map k a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Map k a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Map k a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Map k a -> m (Map k a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Map k a -> m (Map k a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Map k a -> m (Map k a) #

(Ord k, Ord v) => Ord (Map k v) 
Instance details

Defined in Data.Map.Internal

Methods

compare :: Map k v -> Map k v -> Ordering #

(<) :: Map k v -> Map k v -> Bool #

(<=) :: Map k v -> Map k v -> Bool #

(>) :: Map k v -> Map k v -> Bool #

(>=) :: Map k v -> Map k v -> Bool #

max :: Map k v -> Map k v -> Map k v #

min :: Map k v -> Map k v -> Map k v #

(Ord k, Read k, Read e) => Read (Map k e) 
Instance details

Defined in Data.Map.Internal

Methods

readsPrec :: Int -> ReadS (Map k e) #

readList :: ReadS [Map k e] #

readPrec :: ReadPrec (Map k e) #

readListPrec :: ReadPrec [Map k e] #

(Show k, Show a) => Show (Map k a) 
Instance details

Defined in Data.Map.Internal

Methods

showsPrec :: Int -> Map k a -> ShowS #

show :: Map k a -> String #

showList :: [Map k a] -> ShowS #

Ord k => Semigroup (Map k v) 
Instance details

Defined in Data.Map.Internal

Methods

(<>) :: Map k v -> Map k v -> Map k v #

sconcat :: NonEmpty (Map k v) -> Map k v #

stimes :: Integral b => b -> Map k v -> Map k v #

Ord k => Monoid (Map k v) 
Instance details

Defined in Data.Map.Internal

Methods

mempty :: Map k v #

mappend :: Map k v -> Map k v -> Map k v #

mconcat :: [Map k v] -> Map k v #

(NFData k, NFData a) => NFData (Map k a) 
Instance details

Defined in Data.Map.Internal

Methods

rnf :: Map k a -> () #

(ToJSON v, ToJSONKey k) => ToJSON (Map k v) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Map k v -> Value #

toEncoding :: Map k v -> Encoding #

toJSONList :: [Map k v] -> Value #

toEncodingList :: [Map k v] -> Encoding #

(FromJSONKey k, Ord k, FromJSON v) => FromJSON (Map k v) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Map k v) #

parseJSONList :: Value -> Parser [Map k v] #

type Item (Map k v) 
Instance details

Defined in Data.Map.Internal

type Item (Map k v) = (k, v)

class (Alternative m, Monad m) => MonadPlus (m :: Type -> Type) where #

Monads that also support choice and failure.

Minimal complete definition

Nothing

Methods

mzero :: m a #

The identity of mplus. It should also satisfy the equations

mzero >>= f  =  mzero
v >> mzero   =  mzero

The default definition is

mzero = empty

mplus :: m a -> m a -> m a #

An associative operation. The default definition is

mplus = (<|>)
Instances
MonadPlus []

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mzero :: [a] #

mplus :: [a] -> [a] -> [a] #

MonadPlus Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

mzero :: Maybe a #

mplus :: Maybe a -> Maybe a -> Maybe a #

MonadPlus IO

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

mzero :: IO a #

mplus :: IO a -> IO a -> IO a #

MonadPlus IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

mzero :: IResult a #

mplus :: IResult a -> IResult a -> IResult a #

MonadPlus Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

mzero :: Result a #

mplus :: Result a -> Result a -> Result a #

MonadPlus Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

mzero :: Parser a #

mplus :: Parser a -> Parser a -> Parser a #

MonadPlus Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mzero :: Option a #

mplus :: Option a -> Option a -> Option a #

MonadPlus ReadP

Since: base-2.1

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

mzero :: ReadP a #

mplus :: ReadP a -> ReadP a -> ReadP a #

MonadPlus Seq 
Instance details

Defined in Data.Sequence.Internal

Methods

mzero :: Seq a #

mplus :: Seq a -> Seq a -> Seq a #

MonadPlus DList 
Instance details

Defined in Data.DList

Methods

mzero :: DList a #

mplus :: DList a -> DList a -> DList a #

MonadPlus Vector 
Instance details

Defined in Data.Vector

Methods

mzero :: Vector a #

mplus :: Vector a -> Vector a -> Vector a #

MonadPlus SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

MonadPlus Array 
Instance details

Defined in Data.Primitive.Array

Methods

mzero :: Array a #

mplus :: Array a -> Array a -> Array a #

MonadPlus P

Since: base-2.1

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

mzero :: P a #

mplus :: P a -> P a -> P a #

MonadPlus (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

mzero :: U1 a #

mplus :: U1 a -> U1 a -> U1 a #

MonadPlus (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

mzero :: Parser i a #

mplus :: Parser i a -> Parser i a -> Parser i a #

MonadPlus (Proxy :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Proxy

Methods

mzero :: Proxy a #

mplus :: Proxy a -> Proxy a -> Proxy a #

MonadPlus m => MonadPlus (ResourceT m)

Since 1.1.5

Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

mzero :: ResourceT m a #

mplus :: ResourceT m a -> ResourceT m a -> ResourceT m a #

MonadPlus f => MonadPlus (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

mzero :: Rec1 f a #

mplus :: Rec1 f a -> Rec1 f a -> Rec1 f a #

MonadPlus f => MonadPlus (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

mzero :: Ap f a #

mplus :: Ap f a -> Ap f a -> Ap f a #

MonadPlus f => MonadPlus (Alt f)

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

mzero :: Alt f a #

mplus :: Alt f a -> Alt f a -> Alt f a #

(Monad m, Monoid e) => MonadPlus (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

mzero :: ExceptT e m a #

mplus :: ExceptT e m a -> ExceptT e m a -> ExceptT e m a #

(Monad m, Error e) => MonadPlus (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

mzero :: ErrorT e m a #

mplus :: ErrorT e m a -> ErrorT e m a -> ErrorT e m a #

(MonadPlus f, MonadPlus g) => MonadPlus (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

mzero :: (f :*: g) a #

mplus :: (f :*: g) a -> (f :*: g) a -> (f :*: g) a #

(MonadPlus f, MonadPlus g) => MonadPlus (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

mzero :: Product f g a #

mplus :: Product f g a -> Product f g a -> Product f g a #

(Ord e, Stream s) => MonadPlus (ParsecT e s m)

mzero is a parser that fails without consuming input.

Instance details

Defined in Text.Megaparsec.Internal

Methods

mzero :: ParsecT e s m a #

mplus :: ParsecT e s m a -> ParsecT e s m a -> ParsecT e s m a #

MonadPlus f => MonadPlus (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

mzero :: M1 i c f a #

mplus :: M1 i c f a -> M1 i c f a -> M1 i c f a #

class Applicative f => Alternative (f :: Type -> Type) where #

A monoid on applicative functors.

If defined, some and many should be the least solutions of the equations:

Minimal complete definition

empty, (<|>)

Methods

empty :: f a #

The identity of <|>

(<|>) :: f a -> f a -> f a infixl 3 #

An associative binary operation

some :: f a -> f [a] #

One or more.

many :: f a -> f [a] #

Zero or more.

Instances
Alternative []

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

empty :: [a] #

(<|>) :: [a] -> [a] -> [a] #

some :: [a] -> [[a]] #

many :: [a] -> [[a]] #

Alternative Maybe

Since: base-2.1

Instance details

Defined in GHC.Base

Methods

empty :: Maybe a #

(<|>) :: Maybe a -> Maybe a -> Maybe a #

some :: Maybe a -> Maybe [a] #

many :: Maybe a -> Maybe [a] #

Alternative IO

Since: base-4.9.0.0

Instance details

Defined in GHC.Base

Methods

empty :: IO a #

(<|>) :: IO a -> IO a -> IO a #

some :: IO a -> IO [a] #

many :: IO a -> IO [a] #

Alternative ZipList

Since: base-4.11.0.0

Instance details

Defined in Control.Applicative

Methods

empty :: ZipList a #

(<|>) :: ZipList a -> ZipList a -> ZipList a #

some :: ZipList a -> ZipList [a] #

many :: ZipList a -> ZipList [a] #

Alternative IResult 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

empty :: IResult a #

(<|>) :: IResult a -> IResult a -> IResult a #

some :: IResult a -> IResult [a] #

many :: IResult a -> IResult [a] #

Alternative Result 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

empty :: Result a #

(<|>) :: Result a -> Result a -> Result a #

some :: Result a -> Result [a] #

many :: Result a -> Result [a] #

Alternative Parser 
Instance details

Defined in Data.Aeson.Types.Internal

Methods

empty :: Parser a #

(<|>) :: Parser a -> Parser a -> Parser a #

some :: Parser a -> Parser [a] #

many :: Parser a -> Parser [a] #

Alternative Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

empty :: Option a #

(<|>) :: Option a -> Option a -> Option a #

some :: Option a -> Option [a] #

many :: Option a -> Option [a] #

Alternative ReadP

Since: base-4.6.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

empty :: ReadP a #

(<|>) :: ReadP a -> ReadP a -> ReadP a #

some :: ReadP a -> ReadP [a] #

many :: ReadP a -> ReadP [a] #

Alternative Seq

Since: containers-0.5.4

Instance details

Defined in Data.Sequence.Internal

Methods

empty :: Seq a #

(<|>) :: Seq a -> Seq a -> Seq a #

some :: Seq a -> Seq [a] #

many :: Seq a -> Seq [a] #

Alternative DList 
Instance details

Defined in Data.DList

Methods

empty :: DList a #

(<|>) :: DList a -> DList a -> DList a #

some :: DList a -> DList [a] #

many :: DList a -> DList [a] #

Alternative Vector 
Instance details

Defined in Data.Vector

Methods

empty :: Vector a #

(<|>) :: Vector a -> Vector a -> Vector a #

some :: Vector a -> Vector [a] #

many :: Vector a -> Vector [a] #

Alternative SmallArray 
Instance details

Defined in Data.Primitive.SmallArray

Alternative Array 
Instance details

Defined in Data.Primitive.Array

Methods

empty :: Array a #

(<|>) :: Array a -> Array a -> Array a #

some :: Array a -> Array [a] #

many :: Array a -> Array [a] #

Alternative P

Since: base-4.5.0.0

Instance details

Defined in Text.ParserCombinators.ReadP

Methods

empty :: P a #

(<|>) :: P a -> P a -> P a #

some :: P a -> P [a] #

many :: P a -> P [a] #

Alternative (U1 :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

empty :: U1 a #

(<|>) :: U1 a -> U1 a -> U1 a #

some :: U1 a -> U1 [a] #

many :: U1 a -> U1 [a] #

MonadPlus m => Alternative (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

empty :: WrappedMonad m a #

(<|>) :: WrappedMonad m a -> WrappedMonad m a -> WrappedMonad m a #

some :: WrappedMonad m a -> WrappedMonad m [a] #

many :: WrappedMonad m a -> WrappedMonad m [a] #

Alternative (Parser i) 
Instance details

Defined in Data.Attoparsec.Internal.Types

Methods

empty :: Parser i a #

(<|>) :: Parser i a -> Parser i a -> Parser i a #

some :: Parser i a -> Parser i [a] #

many :: Parser i a -> Parser i [a] #

Alternative (Proxy :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Proxy

Methods

empty :: Proxy a #

(<|>) :: Proxy a -> Proxy a -> Proxy a #

some :: Proxy a -> Proxy [a] #

many :: Proxy a -> Proxy [a] #

Alternative m => Alternative (ResourceT m)

Since 1.1.5

Instance details

Defined in Control.Monad.Trans.Resource.Internal

Methods

empty :: ResourceT m a #

(<|>) :: ResourceT m a -> ResourceT m a -> ResourceT m a #

some :: ResourceT m a -> ResourceT m [a] #

many :: ResourceT m a -> ResourceT m [a] #

Alternative f => Alternative (Rec1 f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

empty :: Rec1 f a #

(<|>) :: Rec1 f a -> Rec1 f a -> Rec1 f a #

some :: Rec1 f a -> Rec1 f [a] #

many :: Rec1 f a -> Rec1 f [a] #

(ArrowZero a, ArrowPlus a) => Alternative (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

empty :: WrappedArrow a b a0 #

(<|>) :: WrappedArrow a b a0 -> WrappedArrow a b a0 -> WrappedArrow a b a0 #

some :: WrappedArrow a b a0 -> WrappedArrow a b [a0] #

many :: WrappedArrow a b a0 -> WrappedArrow a b [a0] #

Alternative f => Alternative (Ap f)

Since: base-4.12.0.0

Instance details

Defined in Data.Monoid

Methods

empty :: Ap f a #

(<|>) :: Ap f a -> Ap f a -> Ap f a #

some :: Ap f a -> Ap f [a] #

many :: Ap f a -> Ap f [a] #

Alternative f => Alternative (Alt f)

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

empty :: Alt f a #

(<|>) :: Alt f a -> Alt f a -> Alt f a #

some :: Alt f a -> Alt f [a] #

many :: Alt f a -> Alt f [a] #

(Functor m, Monad m, Monoid e) => Alternative (ExceptT e m) 
Instance details

Defined in Control.Monad.Trans.Except

Methods

empty :: ExceptT e m a #

(<|>) :: ExceptT e m a -> ExceptT e m a -> ExceptT e m a #

some :: ExceptT e m a -> ExceptT e m [a] #

many :: ExceptT e m a -> ExceptT e m [a] #

(Functor m, Monad m, Error e) => Alternative (ErrorT e m) 
Instance details

Defined in Control.Monad.Trans.Error

Methods

empty :: ErrorT e m a #

(<|>) :: ErrorT e m a -> ErrorT e m a -> ErrorT e m a #

some :: ErrorT e m a -> ErrorT e m [a] #

many :: ErrorT e m a -> ErrorT e m [a] #

(Alternative f, Alternative g) => Alternative (f :*: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

empty :: (f :*: g) a #

(<|>) :: (f :*: g) a -> (f :*: g) a -> (f :*: g) a #

some :: (f :*: g) a -> (f :*: g) [a] #

many :: (f :*: g) a -> (f :*: g) [a] #

(Alternative f, Alternative g) => Alternative (Product f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Product

Methods

empty :: Product f g a #

(<|>) :: Product f g a -> Product f g a -> Product f g a #

some :: Product f g a -> Product f g [a] #

many :: Product f g a -> Product f g [a] #

(Ord e, Stream s) => Alternative (ParsecT e s m)

empty is a parser that fails without consuming input.

Instance details

Defined in Text.Megaparsec.Internal

Methods

empty :: ParsecT e s m a #

(<|>) :: ParsecT e s m a -> ParsecT e s m a -> ParsecT e s m a #

some :: ParsecT e s m a -> ParsecT e s m [a] #

many :: ParsecT e s m a -> ParsecT e s m [a] #

Alternative f => Alternative (M1 i c f)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

empty :: M1 i c f a #

(<|>) :: M1 i c f a -> M1 i c f a -> M1 i c f a #

some :: M1 i c f a -> M1 i c f [a] #

many :: M1 i c f a -> M1 i c f [a] #

(Alternative f, Applicative g) => Alternative (f :.: g)

Since: base-4.9.0.0

Instance details

Defined in GHC.Generics

Methods

empty :: (f :.: g) a #

(<|>) :: (f :.: g) a -> (f :.: g) a -> (f :.: g) a #

some :: (f :.: g) a -> (f :.: g) [a] #

many :: (f :.: g) a -> (f :.: g) [a] #

(Alternative f, Applicative g) => Alternative (Compose f g)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Compose

Methods

empty :: Compose f g a #

(<|>) :: Compose f g a -> Compose f g a -> Compose f g a #

some :: Compose f g a -> Compose f g [a] #

many :: Compose f g a -> Compose f g [a] #

(=<<) :: Monad m => (a -> m b) -> m a -> m b infixr 1 #

Same as >>=, but with the arguments interchanged.

when :: Applicative f => Bool -> f () -> f () #

Conditional execution of Applicative expressions. For example,

when debug (putStrLn "Debugging")

will output the string Debugging if the Boolean value debug is True, and otherwise do nothing.

liftM :: Monad m => (a1 -> r) -> m a1 -> m r #

Promote a function to a monad.

liftM2 :: Monad m => (a1 -> a2 -> r) -> m a1 -> m a2 -> m r #

Promote a function to a monad, scanning the monadic arguments from left to right. For example,

liftM2 (+) [0,1] [0,2] = [0,2,1,3]
liftM2 (+) (Just 1) Nothing = Nothing

ap :: Monad m => m (a -> b) -> m a -> m b #

In many situations, the liftM operations can be replaced by uses of ap, which promotes function application.

return f `ap` x1 `ap` ... `ap` xn

is equivalent to

liftMn f x1 x2 ... xn

ord :: Char -> Int #

The fromEnum method restricted to the type Char.

id :: a -> a #

Identity function.

id x = x

const :: a -> b -> a #

const x is a unary function which evaluates to x for all inputs.

>>> const 42 "hello"
42
>>> map (const 42) [0..3]
[42,42,42,42]

(.) :: (b -> c) -> (a -> b) -> a -> c infixr 9 #

Function composition.

flip :: (a -> b -> c) -> b -> a -> c #

flip f takes its (first) two arguments in the reverse order of f.

>>> flip (++) "hello" "world"
"worldhello"

curry :: ((a, b) -> c) -> a -> b -> c #

curry converts an uncurried function to a curried function.

Examples

Expand
>>> curry fst 1 2
1

uncurry :: (a -> b -> c) -> (a, b) -> c #

uncurry converts a curried function to a function on pairs.

Examples

Expand
>>> uncurry (+) (1,2)
3
>>> uncurry ($) (show, 1)
"1"
>>> map (uncurry max) [(1,2), (3,4), (6,8)]
[2,4,8]

maybe :: b -> (a -> b) -> Maybe a -> b #

The maybe function takes a default value, a function, and a Maybe value. If the Maybe value is Nothing, the function returns the default value. Otherwise, it applies the function to the value inside the Just and returns the result.

Examples

Expand

Basic usage:

>>> maybe False odd (Just 3)
True
>>> maybe False odd Nothing
False

Read an integer from a string using readMaybe. If we succeed, return twice the integer; that is, apply (*2) to it. If instead we fail to parse an integer, return 0 by default:

>>> import Text.Read ( readMaybe )
>>> maybe 0 (*2) (readMaybe "5")
10
>>> maybe 0 (*2) (readMaybe "")
0

Apply show to a Maybe Int. If we have Just n, we want to show the underlying Int n. But if we have Nothing, we return the empty string instead of (for example) "Nothing":

>>> maybe "" show (Just 5)
"5"
>>> maybe "" show Nothing
""

isJust :: Maybe a -> Bool #

The isJust function returns True iff its argument is of the form Just _.

Examples

Expand

Basic usage:

>>> isJust (Just 3)
True
>>> isJust (Just ())
True
>>> isJust Nothing
False

Only the outer constructor is taken into consideration:

>>> isJust (Just Nothing)
True

isNothing :: Maybe a -> Bool #

The isNothing function returns True iff its argument is Nothing.

Examples

Expand

Basic usage:

>>> isNothing (Just 3)
False
>>> isNothing (Just ())
False
>>> isNothing Nothing
True

Only the outer constructor is taken into consideration:

>>> isNothing (Just Nothing)
False

fromMaybe :: a -> Maybe a -> a #

The fromMaybe function takes a default value and and Maybe value. If the Maybe is Nothing, it returns the default values; otherwise, it returns the value contained in the Maybe.

Examples

Expand

Basic usage:

>>> fromMaybe "" (Just "Hello, World!")
"Hello, World!"
>>> fromMaybe "" Nothing
""

Read an integer from a string using readMaybe. If we fail to parse an integer, we want to return 0 by default:

>>> import Text.Read ( readMaybe )
>>> fromMaybe 0 (readMaybe "5")
5
>>> fromMaybe 0 (readMaybe "")
0

maybeToList :: Maybe a -> [a] #

The maybeToList function returns an empty list when given Nothing or a singleton list when not given Nothing.

Examples

Expand

Basic usage:

>>> maybeToList (Just 7)
[7]
>>> maybeToList Nothing
[]

One can use maybeToList to avoid pattern matching when combined with a function that (safely) works on lists:

>>> import Text.Read ( readMaybe )
>>> sum $ maybeToList (readMaybe "3")
3
>>> sum $ maybeToList (readMaybe "")
0

listToMaybe :: [a] -> Maybe a #

The listToMaybe function returns Nothing on an empty list or Just a where a is the first element of the list.

Examples

Expand

Basic usage:

>>> listToMaybe []
Nothing
>>> listToMaybe [9]
Just 9
>>> listToMaybe [1,2,3]
Just 1

Composing maybeToList with listToMaybe should be the identity on singleton/empty lists:

>>> maybeToList $ listToMaybe [5]
[5]
>>> maybeToList $ listToMaybe []
[]

But not on lists with more than one element:

>>> maybeToList $ listToMaybe [1,2,3]
[1]

catMaybes :: [Maybe a] -> [a] #

The catMaybes function takes a list of Maybes and returns a list of all the Just values.

Examples

Expand

Basic usage:

>>> catMaybes [Just 1, Nothing, Just 3]
[1,3]

When constructing a list of Maybe values, catMaybes can be used to return all of the "success" results (if the list is the result of a map, then mapMaybe would be more appropriate):

>>> import Text.Read ( readMaybe )
>>> [readMaybe x :: Maybe Int | x <- ["1", "Foo", "3"] ]
[Just 1,Nothing,Just 3]
>>> catMaybes $ [readMaybe x :: Maybe Int | x <- ["1", "Foo", "3"] ]
[1,3]

mapMaybe :: (a -> Maybe b) -> [a] -> [b] #

The mapMaybe function is a version of map which can throw out elements. In particular, the functional argument returns something of type Maybe b. If this is Nothing, no element is added on to the result list. If it is Just b, then b is included in the result list.

Examples

Expand

Using mapMaybe f x is a shortcut for catMaybes $ map f x in most cases:

>>> import Text.Read ( readMaybe )
>>> let readMaybeInt = readMaybe :: String -> Maybe Int
>>> mapMaybe readMaybeInt ["1", "Foo", "3"]
[1,3]
>>> catMaybes $ map readMaybeInt ["1", "Foo", "3"]
[1,3]

If we map the Just constructor, the entire list should be returned:

>>> mapMaybe Just [1,2,3]
[1,2,3]

head :: [a] -> a #

Extract the first element of a list, which must be non-empty.

tail :: [a] -> [a] #

Extract the elements after the head of a list, which must be non-empty.

last :: [a] -> a #

Extract the last element of a list, which must be finite and non-empty.

init :: [a] -> [a] #

Return all the elements of a list except the last one. The list must be non-empty.

scanl :: (b -> a -> b) -> b -> [a] -> [b] #

scanl is similar to foldl, but returns a list of successive reduced values from the left:

scanl f z [x1, x2, ...] == [z, z `f` x1, (z `f` x1) `f` x2, ...]

Note that

last (scanl f z xs) == foldl f z xs.

scanl1 :: (a -> a -> a) -> [a] -> [a] #

scanl1 is a variant of scanl that has no starting value argument:

scanl1 f [x1, x2, ...] == [x1, x1 `f` x2, ...]

scanr :: (a -> b -> b) -> b -> [a] -> [b] #

scanr is the right-to-left dual of scanl. Note that

head (scanr f z xs) == foldr f z xs.

scanr1 :: (a -> a -> a) -> [a] -> [a] #

scanr1 is a variant of scanr that has no starting value argument.

iterate :: (a -> a) -> a -> [a] #

iterate f x returns an infinite list of repeated applications of f to x:

iterate f x == [x, f x, f (f x), ...]

Note that iterate is lazy, potentially leading to thunk build-up if the consumer doesn't force each iterate. See 'iterate\'' for a strict variant of this function.

repeat :: a -> [a] #

repeat x is an infinite list, with x the value of every element.

replicate :: Int -> a -> [a] #

replicate n x is a list of length n with x the value of every element. It is an instance of the more general genericReplicate, in which n may be of any integral type.

cycle :: [a] -> [a] #

cycle ties a finite list into a circular one, or equivalently, the infinite repetition of the original list. It is the identity on infinite lists.

takeWhile :: (a -> Bool) -> [a] -> [a] #

takeWhile, applied to a predicate p and a list xs, returns the longest prefix (possibly empty) of xs of elements that satisfy p:

takeWhile (< 3) [1,2,3,4,1,2,3,4] == [1,2]
takeWhile (< 9) [1,2,3] == [1,2,3]
takeWhile (< 0) [1,2,3] == []

dropWhile :: (a -> Bool) -> [a] -> [a] #

dropWhile p xs returns the suffix remaining after takeWhile p xs:

dropWhile (< 3) [1,2,3,4,5,1,2,3] == [3,4,5,1,2,3]
dropWhile (< 9) [1,2,3] == []
dropWhile (< 0) [1,2,3] == [1,2,3]

take :: Int -> [a] -> [a] #

take n, applied to a list xs, returns the prefix of xs of length n, or xs itself if n > length xs:

take 5 "Hello World!" == "Hello"
take 3 [1,2,3,4,5] == [1,2,3]
take 3 [1,2] == [1,2]
take 3 [] == []
take (-1) [1,2] == []
take 0 [1,2] == []

It is an instance of the more general genericTake, in which n may be of any integral type.

drop :: Int -> [a] -> [a] #

drop n xs returns the suffix of xs after the first n elements, or [] if n > length xs:

drop 6 "Hello World!" == "World!"
drop 3 [1,2,3,4,5] == [4,5]
drop 3 [1,2] == []
drop 3 [] == []
drop (-1) [1,2] == [1,2]
drop 0 [1,2] == [1,2]

It is an instance of the more general genericDrop, in which n may be of any integral type.

splitAt :: Int -> [a] -> ([a], [a]) #

splitAt n xs returns a tuple where first element is xs prefix of length n and second element is the remainder of the list:

splitAt 6 "Hello World!" == ("Hello ","World!")
splitAt 3 [1,2,3,4,5] == ([1,2,3],[4,5])
splitAt 1 [1,2,3] == ([1],[2,3])
splitAt 3 [1,2,3] == ([1,2,3],[])
splitAt 4 [1,2,3] == ([1,2,3],[])
splitAt 0 [1,2,3] == ([],[1,2,3])
splitAt (-1) [1,2,3] == ([],[1,2,3])

It is equivalent to (take n xs, drop n xs) when n is not _|_ (splitAt _|_ xs = _|_). splitAt is an instance of the more general genericSplitAt, in which n may be of any integral type.

span :: (a -> Bool) -> [a] -> ([a], [a]) #

span, applied to a predicate p and a list xs, returns a tuple where first element is longest prefix (possibly empty) of xs of elements that satisfy p and second element is the remainder of the list:

span (< 3) [1,2,3,4,1,2,3,4] == ([1,2],[3,4,1,2,3,4])
span (< 9) [1,2,3] == ([1,2,3],[])
span (< 0) [1,2,3] == ([],[1,2,3])

span p xs is equivalent to (takeWhile p xs, dropWhile p xs)

break :: (a -> Bool) -> [a] -> ([a], [a]) #

break, applied to a predicate p and a list xs, returns a tuple where first element is longest prefix (possibly empty) of xs of elements that do not satisfy p and second element is the remainder of the list:

break (> 3) [1,2,3,4,1,2,3,4] == ([1,2,3],[4,1,2,3,4])
break (< 9) [1,2,3] == ([],[1,2,3])
break (> 9) [1,2,3] == ([1,2,3],[])

break p is equivalent to span (not . p).

reverse :: [a] -> [a] #

reverse xs returns the elements of xs in reverse order. xs must be finite.

lookup :: Eq a => a -> [(a, b)] -> Maybe b #

lookup key assocs looks up a key in an association list.

(!!) :: [a] -> Int -> a infixl 9 #

List index (subscript) operator, starting from 0. It is an instance of the more general genericIndex, which takes an index of any integral type.

zip3 :: [a] -> [b] -> [c] -> [(a, b, c)] #

zip3 takes three lists and returns a list of triples, analogous to zip.

zipWith :: (a -> b -> c) -> [a] -> [b] -> [c] #

zipWith generalises zip by zipping with the function given as the first argument, instead of a tupling function. For example, zipWith (+) is applied to two lists to produce the list of corresponding sums.

zipWith is right-lazy:

zipWith f [] _|_ = []

zipWith3 :: (a -> b -> c -> d) -> [a] -> [b] -> [c] -> [d] #

The zipWith3 function takes a function which combines three elements, as well as three lists and returns a list of their point-wise combination, analogous to zipWith.

unzip :: [(a, b)] -> ([a], [b]) #

unzip transforms a list of pairs into a list of first components and a list of second components.

unzip3 :: [(a, b, c)] -> ([a], [b], [c]) #

The unzip3 function takes a list of triples and returns three lists, analogous to unzip.

chr :: Int -> Char #

The toEnum method restricted to the type Char.

(<$>) :: Functor f => (a -> b) -> f a -> f b infixl 4 #

An infix synonym for fmap.

The name of this operator is an allusion to $. Note the similarities between their types:

 ($)  ::              (a -> b) ->   a ->   b
(<$>) :: Functor f => (a -> b) -> f a -> f b

Whereas $ is function application, <$> is function application lifted over a Functor.

Examples

Expand

Convert from a Maybe Int to a Maybe String using show:

>>> show <$> Nothing
Nothing
>>> show <$> Just 3
Just "3"

Convert from an Either Int Int to an Either Int String using show:

>>> show <$> Left 17
Left 17
>>> show <$> Right 17
Right "17"

Double each element of a list:

>>> (*2) <$> [1,2,3]
[2,4,6]

Apply even to the second element of a pair:

>>> even <$> (2,2)
(2,True)

void :: Functor f => f a -> f () #

void value discards or ignores the result of evaluation, such as the return value of an IO action.

Examples

Expand

Replace the contents of a Maybe Int with unit:

>>> void Nothing
Nothing
>>> void (Just 3)
Just ()

Replace the contents of an Either Int Int with unit, resulting in an Either Int '()':

>>> void (Left 8675309)
Left 8675309
>>> void (Right 8675309)
Right ()

Replace every element of a list with unit:

>>> void [1,2,3]
[(),(),()]

Replace the second element of a pair with unit:

>>> void (1,2)
(1,())

Discard the result of an IO action:

>>> mapM print [1,2]
1
2
[(),()]
>>> void $ mapM print [1,2]
1
2

isSpace :: Char -> Bool #

Returns True for any Unicode space character, and the control characters \t, \n, \r, \f, \v.

isDigit :: Char -> Bool #

Selects ASCII digits, i.e. '0'..'9'.

isAlpha :: Char -> Bool #

Selects alphabetic Unicode characters (lower-case, upper-case and title-case letters, plus letters of caseless scripts and modifiers letters). This function is equivalent to isLetter.

isAlphaNum :: Char -> Bool #

Selects alphabetic or numeric Unicode characters.

Note that numeric digits outside the ASCII range, as well as numeric characters which aren't digits, are selected by this function but not by isDigit. Such characters may be part of identifiers but are not used by the printer and reader to represent numbers.

isUpper :: Char -> Bool #

Selects upper-case or title-case alphabetic Unicode characters (letters). Title case is used by a small number of letter ligatures like the single-character form of Lj.

toLower :: Char -> Char #

Convert a letter to the corresponding lower-case letter, if any. Any other character is returned unchanged.

toUpper :: Char -> Char #

Convert a letter to the corresponding upper-case letter, if any. Any other character is returned unchanged.

isPrefixOf :: Eq a => [a] -> [a] -> Bool #

The isPrefixOf function takes two lists and returns True iff the first list is a prefix of the second.

>>> "Hello" `isPrefixOf` "Hello World!"
True
>>> "Hello" `isPrefixOf` "Wello Horld!"
False

isSuffixOf :: Eq a => [a] -> [a] -> Bool #

The isSuffixOf function takes two lists and returns True iff the first list is a suffix of the second. The second list must be finite.

>>> "ld!" `isSuffixOf` "Hello World!"
True
>>> "World" `isSuffixOf` "Hello World!"
False

isInfixOf :: Eq a => [a] -> [a] -> Bool #

The isInfixOf function takes two lists and returns True iff the first list is contained, wholly and intact, anywhere within the second.

>>> isInfixOf "Haskell" "I really like Haskell."
True
>>> isInfixOf "Ial" "I really like Haskell."
False

nub :: Eq a => [a] -> [a] #

O(n^2). The nub function removes duplicate elements from a list. In particular, it keeps only the first occurrence of each element. (The name nub means `essence'.) It is a special case of nubBy, which allows the programmer to supply their own equality test.

>>> nub [1,2,3,4,3,2,1,2,4,3,5]
[1,2,3,4,5]

nubBy :: (a -> a -> Bool) -> [a] -> [a] #

The nubBy function behaves just like nub, except it uses a user-supplied equality predicate instead of the overloaded == function.

>>> nubBy (\x y -> mod x 3 == mod y 3) [1,2,4,5,6]
[1,2,6]

intersperse :: a -> [a] -> [a] #

The intersperse function takes an element and a list and `intersperses' that element between the elements of the list. For example,

>>> intersperse ',' "abcde"
"a,b,c,d,e"

intercalate :: [a] -> [[a]] -> [a] #

intercalate xs xss is equivalent to (concat (intersperse xs xss)). It inserts the list xs in between the lists in xss and concatenates the result.

>>> intercalate ", " ["Lorem", "ipsum", "dolor"]
"Lorem, ipsum, dolor"

sort :: Ord a => [a] -> [a] #

The sort function implements a stable sorting algorithm. It is a special case of sortBy, which allows the programmer to supply their own comparison function.

Elements are arranged from from lowest to highest, keeping duplicates in the order they appeared in the input.

>>> sort [1,6,4,3,2,5]
[1,2,3,4,5,6]

sortBy :: (a -> a -> Ordering) -> [a] -> [a] #

The sortBy function is the non-overloaded version of sort.

>>> sortBy (\(a,_) (b,_) -> compare a b) [(2, "world"), (4, "!"), (1, "Hello")]
[(1,"Hello"),(2,"world"),(4,"!")]

unfoldr :: (b -> Maybe (a, b)) -> b -> [a] #

The unfoldr function is a `dual' to foldr: while foldr reduces a list to a summary value, unfoldr builds a list from a seed value. The function takes the element and returns Nothing if it is done producing the list or returns Just (a,b), in which case, a is a prepended to the list and b is used as the next element in a recursive call. For example,

iterate f == unfoldr (\x -> Just (x, f x))

In some cases, unfoldr can undo a foldr operation:

unfoldr f' (foldr f z xs) == xs

if the following holds:

f' (f x y) = Just (x,y)
f' z       = Nothing

A simple use of unfoldr:

>>> unfoldr (\b -> if b == 0 then Nothing else Just (b, b-1)) 10
[10,9,8,7,6,5,4,3,2,1]

lines :: String -> [String] #

lines breaks a string up into a list of strings at newline characters. The resulting strings do not contain newlines.

Note that after splitting the string at newline characters, the last part of the string is considered a line even if it doesn't end with a newline. For example,

>>> lines ""
[]
>>> lines "\n"
[""]
>>> lines "one"
["one"]
>>> lines "one\n"
["one"]
>>> lines "one\n\n"
["one",""]
>>> lines "one\ntwo"
["one","two"]
>>> lines "one\ntwo\n"
["one","two"]

Thus lines s contains at least as many elements as newlines in s.

unlines :: [String] -> String #

unlines is an inverse operation to lines. It joins lines, after appending a terminating newline to each.

>>> unlines ["Hello", "World", "!"]
"Hello\nWorld\n!\n"

words :: String -> [String] #

words breaks a string up into a list of words, which were delimited by white space.

>>> words "Lorem ipsum\ndolor"
["Lorem","ipsum","dolor"]

unwords :: [String] -> String #

unwords is an inverse operation to words. It joins words with separating spaces.

>>> unwords ["Lorem", "ipsum", "dolor"]
"Lorem ipsum dolor"

newtype Any #

Boolean monoid under disjunction (||).

>>> getAny (Any True <> mempty <> Any False)
True
>>> getAny (mconcat (map (\x -> Any (even x)) [2,4,6,7,8]))
True

Constructors

Any 

Fields

Instances
Bounded Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

minBound :: Any #

maxBound :: Any #

Eq Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Any -> Any -> Bool #

(/=) :: Any -> Any -> Bool #

Data Any

Since: base-4.8.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Any -> c Any #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Any #

toConstr :: Any -> Constr #

dataTypeOf :: Any -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Any) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Any) #

gmapT :: (forall b. Data b => b -> b) -> Any -> Any #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Any -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Any -> r #

gmapQ :: (forall d. Data d => d -> u) -> Any -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Any -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Any -> m Any #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Any -> m Any #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Any -> m Any #

Ord Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Any -> Any -> Ordering #

(<) :: Any -> Any -> Bool #

(<=) :: Any -> Any -> Bool #

(>) :: Any -> Any -> Bool #

(>=) :: Any -> Any -> Bool #

max :: Any -> Any -> Any #

min :: Any -> Any -> Any #

Read Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Show Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

showsPrec :: Int -> Any -> ShowS #

show :: Any -> String #

showList :: [Any] -> ShowS #

Generic Any 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep Any :: Type -> Type #

Methods

from :: Any -> Rep Any x #

to :: Rep Any x -> Any #

Semigroup Any

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Any -> Any -> Any #

sconcat :: NonEmpty Any -> Any #

stimes :: Integral b => b -> Any -> Any #

Monoid Any

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: Any #

mappend :: Any -> Any -> Any #

mconcat :: [Any] -> Any #

NFData Any

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Any -> () #

type Rep Any

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep Any = D1 (MetaData "Any" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Any" PrefixI True) (S1 (MetaSel (Just "getAny") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool)))

newtype All #

Boolean monoid under conjunction (&&).

>>> getAll (All True <> mempty <> All False)
False
>>> getAll (mconcat (map (\x -> All (even x)) [2,4,6,7,8]))
False

Constructors

All 

Fields

Instances
Bounded All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

minBound :: All #

maxBound :: All #

Eq All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: All -> All -> Bool #

(/=) :: All -> All -> Bool #

Data All

Since: base-4.8.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> All -> c All #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c All #

toConstr :: All -> Constr #

dataTypeOf :: All -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c All) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c All) #

gmapT :: (forall b. Data b => b -> b) -> All -> All #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> All -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> All -> r #

gmapQ :: (forall d. Data d => d -> u) -> All -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> All -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> All -> m All #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> All -> m All #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> All -> m All #

Ord All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: All -> All -> Ordering #

(<) :: All -> All -> Bool #

(<=) :: All -> All -> Bool #

(>) :: All -> All -> Bool #

(>=) :: All -> All -> Bool #

max :: All -> All -> All #

min :: All -> All -> All #

Read All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Show All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

showsPrec :: Int -> All -> ShowS #

show :: All -> String #

showList :: [All] -> ShowS #

Generic All 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep All :: Type -> Type #

Methods

from :: All -> Rep All x #

to :: Rep All x -> All #

Semigroup All

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: All -> All -> All #

sconcat :: NonEmpty All -> All #

stimes :: Integral b => b -> All -> All #

Monoid All

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: All #

mappend :: All -> All -> All #

mconcat :: [All] -> All #

NFData All

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: All -> () #

type Rep All

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep All = D1 (MetaData "All" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "All" PrefixI True) (S1 (MetaSel (Just "getAll") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool)))

traverse_ :: (Foldable t, Applicative f) => (a -> f b) -> t a -> f () #

Map each element of a structure to an action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results see traverse.

for_ :: (Foldable t, Applicative f) => t a -> (a -> f b) -> f () #

for_ is traverse_ with its arguments flipped. For a version that doesn't ignore the results see for.

>>> for_ [1..4] print
1
2
3
4

sequence_ :: (Foldable t, Monad m) => t (m a) -> m () #

Evaluate each monadic action in the structure from left to right, and ignore the results. For a version that doesn't ignore the results see sequence.

As of base 4.8.0.0, sequence_ is just sequenceA_, specialized to Monad.

concat :: Foldable t => t [a] -> [a] #

The concatenation of all the elements of a container of lists.

concatMap :: Foldable t => (a -> [b]) -> t a -> [b] #

Map a function over all the elements of a container and concatenate the resulting lists.

and :: Foldable t => t Bool -> Bool #

and returns the conjunction of a container of Bools. For the result to be True, the container must be finite; False, however, results from a False value finitely far from the left end.

or :: Foldable t => t Bool -> Bool #

or returns the disjunction of a container of Bools. For the result to be False, the container must be finite; True, however, results from a True value finitely far from the left end.

any :: Foldable t => (a -> Bool) -> t a -> Bool #

Determines whether any element of the structure satisfies the predicate.

all :: Foldable t => (a -> Bool) -> t a -> Bool #

Determines whether all elements of the structure satisfy the predicate.

notElem :: (Foldable t, Eq a) => a -> t a -> Bool infix 4 #

notElem is the negation of elem.

find :: Foldable t => (a -> Bool) -> t a -> Maybe a #

The find function takes a predicate and a structure and returns the leftmost element of the structure matching the predicate, or Nothing if there is no such element.

optional :: Alternative f => f a -> f (Maybe a) #

One or none.

for :: (Traversable t, Applicative f) => t a -> (a -> f b) -> f (t b) #

for is traverse with its arguments flipped. For a version that ignores the results see for_.

filterM :: Applicative m => (a -> m Bool) -> [a] -> m [a] #

This generalizes the list-based filter function.

foldM :: (Foldable t, Monad m) => (b -> a -> m b) -> b -> t a -> m b #

The foldM function is analogous to foldl, except that its result is encapsulated in a monad. Note that foldM works from left-to-right over the list arguments. This could be an issue where (>>) and the `folded function' are not commutative.

foldM f a1 [x1, x2, ..., xm]

==

do
  a2 <- f a1 x1
  a3 <- f a2 x2
  ...
  f am xm

If right-to-left evaluation is required, the input list should be reversed.

Note: foldM is the same as foldlM

unless :: Applicative f => Bool -> f () -> f () #

The reverse of when.

data Set a #

A set of values a.

Instances
Foldable Set 
Instance details

Defined in Data.Set.Internal

Methods

fold :: Monoid m => Set m -> m #

foldMap :: Monoid m => (a -> m) -> Set a -> m #

foldr :: (a -> b -> b) -> b -> Set a -> b #

foldr' :: (a -> b -> b) -> b -> Set a -> b #

foldl :: (b -> a -> b) -> b -> Set a -> b #

foldl' :: (b -> a -> b) -> b -> Set a -> b #

foldr1 :: (a -> a -> a) -> Set a -> a #

foldl1 :: (a -> a -> a) -> Set a -> a #

toList :: Set a -> [a] #

null :: Set a -> Bool #

length :: Set a -> Int #

elem :: Eq a => a -> Set a -> Bool #

maximum :: Ord a => Set a -> a #

minimum :: Ord a => Set a -> a #

sum :: Num a => Set a -> a #

product :: Num a => Set a -> a #

ToJSON1 Set 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Set a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Set a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Set a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Set a] -> Encoding #

Eq1 Set

Since: containers-0.5.9

Instance details

Defined in Data.Set.Internal

Methods

liftEq :: (a -> b -> Bool) -> Set a -> Set b -> Bool #

Ord1 Set

Since: containers-0.5.9

Instance details

Defined in Data.Set.Internal

Methods

liftCompare :: (a -> b -> Ordering) -> Set a -> Set b -> Ordering #

Show1 Set

Since: containers-0.5.9

Instance details

Defined in Data.Set.Internal

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> Set a -> ShowS #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [Set a] -> ShowS #

Ord a => IsList (Set a)

Since: containers-0.5.6.2

Instance details

Defined in Data.Set.Internal

Associated Types

type Item (Set a) :: Type #

Methods

fromList :: [Item (Set a)] -> Set a #

fromListN :: Int -> [Item (Set a)] -> Set a #

toList :: Set a -> [Item (Set a)] #

Eq a => Eq (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

(==) :: Set a -> Set a -> Bool #

(/=) :: Set a -> Set a -> Bool #

(Data a, Ord a) => Data (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Set a -> c (Set a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Set a) #

toConstr :: Set a -> Constr #

dataTypeOf :: Set a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Set a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Set a)) #

gmapT :: (forall b. Data b => b -> b) -> Set a -> Set a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Set a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Set a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Set a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Set a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Set a -> m (Set a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Set a -> m (Set a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Set a -> m (Set a) #

Ord a => Ord (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

compare :: Set a -> Set a -> Ordering #

(<) :: Set a -> Set a -> Bool #

(<=) :: Set a -> Set a -> Bool #

(>) :: Set a -> Set a -> Bool #

(>=) :: Set a -> Set a -> Bool #

max :: Set a -> Set a -> Set a #

min :: Set a -> Set a -> Set a #

(Read a, Ord a) => Read (Set a) 
Instance details

Defined in Data.Set.Internal

Show a => Show (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

showsPrec :: Int -> Set a -> ShowS #

show :: Set a -> String #

showList :: [Set a] -> ShowS #

Ord a => Semigroup (Set a)

Since: containers-0.5.7

Instance details

Defined in Data.Set.Internal

Methods

(<>) :: Set a -> Set a -> Set a #

sconcat :: NonEmpty (Set a) -> Set a #

stimes :: Integral b => b -> Set a -> Set a #

Ord a => Monoid (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

mempty :: Set a #

mappend :: Set a -> Set a -> Set a #

mconcat :: [Set a] -> Set a #

NFData a => NFData (Set a) 
Instance details

Defined in Data.Set.Internal

Methods

rnf :: Set a -> () #

ToJSON a => ToJSON (Set a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Set a -> Value #

toEncoding :: Set a -> Encoding #

toJSONList :: [Set a] -> Value #

toEncodingList :: [Set a] -> Encoding #

(Ord a, FromJSON a) => FromJSON (Set a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Set a) #

parseJSONList :: Value -> Parser [Set a] #

type Item (Set a) 
Instance details

Defined in Data.Set.Internal

type Item (Set a) = a

(<**>) :: Applicative f => f a -> f (a -> b) -> f b infixl 4 #

A variant of <*> with the arguments reversed.

liftA :: Applicative f => (a -> b) -> f a -> f b #

Lift a function to actions. This function may be used as a value for fmap in a Functor instance.

liftA3 :: Applicative f => (a -> b -> c -> d) -> f a -> f b -> f c -> f d #

Lift a ternary function to actions.

liftM3 :: Monad m => (a1 -> a2 -> a3 -> r) -> m a1 -> m a2 -> m a3 -> m r #

Promote a function to a monad, scanning the monadic arguments from left to right (cf. liftM2).

liftM4 :: Monad m => (a1 -> a2 -> a3 -> a4 -> r) -> m a1 -> m a2 -> m a3 -> m a4 -> m r #

Promote a function to a monad, scanning the monadic arguments from left to right (cf. liftM2).

liftM5 :: Monad m => (a1 -> a2 -> a3 -> a4 -> a5 -> r) -> m a1 -> m a2 -> m a3 -> m a4 -> m a5 -> m r #

Promote a function to a monad, scanning the monadic arguments from left to right (cf. liftM2).

fix :: (a -> a) -> a #

fix f is the least fixed point of the function f, i.e. the least defined x such that f x = x.

For example, we can write the factorial function using direct recursion as

>>> let fac n = if n <= 1 then 1 else n * fac (n-1) in fac 5
120

This uses the fact that Haskell’s let introduces recursive bindings. We can rewrite this definition using fix,

>>> fix (\rec n -> if n <= 1 then 1 else n * rec (n-1)) 5
120

Instead of making a recursive call, we introduce a dummy parameter rec; when used within fix, this parameter then refers to fix' argument, hence the recursion is reintroduced.

readMaybe :: Read a => String -> Maybe a #

Parse a string using the Read instance. Succeeds if there is exactly one valid result.

>>> readMaybe "123" :: Maybe Int
Just 123
>>> readMaybe "hello" :: Maybe Int
Nothing

Since: base-4.6.0.0

mapM_ :: (Foldable t, Monad m) => (a -> m b) -> t a -> m () #

Map each element of a structure to a monadic action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results see mapM.

As of base 4.8.0.0, mapM_ is just traverse_, specialized to Monad.

forM_ :: (Foldable t, Monad m) => t a -> (a -> m b) -> m () #

forM_ is mapM_ with its arguments flipped. For a version that doesn't ignore the results see forM.

As of base 4.8.0.0, forM_ is just for_, specialized to Monad.

msum :: (Foldable t, MonadPlus m) => t (m a) -> m a #

The sum of a collection of actions, generalizing concat. As of base 4.8.0.0, msum is just asum, specialized to MonadPlus.

newtype Const a (b :: k) :: forall k. Type -> k -> Type #

The Const functor.

Constructors

Const 

Fields

Instances
Generic1 (Const a :: k -> Type) 
Instance details

Defined in Data.Functor.Const

Associated Types

type Rep1 (Const a) :: k -> Type #

Methods

from1 :: Const a a0 -> Rep1 (Const a) a0 #

to1 :: Rep1 (Const a) a0 -> Const a a0 #

ToJSON2 (Const :: Type -> Type -> Type) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON2 :: (a -> Value) -> ([a] -> Value) -> (b -> Value) -> ([b] -> Value) -> Const a b -> Value #

liftToJSONList2 :: (a -> Value) -> ([a] -> Value) -> (b -> Value) -> ([b] -> Value) -> [Const a b] -> Value #

liftToEncoding2 :: (a -> Encoding) -> ([a] -> Encoding) -> (b -> Encoding) -> ([b] -> Encoding) -> Const a b -> Encoding #

liftToEncodingList2 :: (a -> Encoding) -> ([a] -> Encoding) -> (b -> Encoding) -> ([b] -> Encoding) -> [Const a b] -> Encoding #

FromJSON2 (Const :: Type -> Type -> Type) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON2 :: (Value -> Parser a) -> (Value -> Parser [a]) -> (Value -> Parser b) -> (Value -> Parser [b]) -> Value -> Parser (Const a b) #

liftParseJSONList2 :: (Value -> Parser a) -> (Value -> Parser [a]) -> (Value -> Parser b) -> (Value -> Parser [b]) -> Value -> Parser [Const a b] #

Bifunctor (Const :: Type -> Type -> Type)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> Const a c -> Const b d #

first :: (a -> b) -> Const a c -> Const b c #

second :: (b -> c) -> Const a b -> Const a c #

Eq2 (Const :: Type -> Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq2 :: (a -> b -> Bool) -> (c -> d -> Bool) -> Const a c -> Const b d -> Bool #

Ord2 (Const :: Type -> Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare2 :: (a -> b -> Ordering) -> (c -> d -> Ordering) -> Const a c -> Const b d -> Ordering #

Read2 (Const :: Type -> Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> Int -> ReadS (Const a b) #

liftReadList2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> ReadS [Const a b] #

liftReadPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec (Const a b) #

liftReadListPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec [Const a b] #

Show2 (Const :: Type -> Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> Int -> Const a b -> ShowS #

liftShowList2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> [Const a b] -> ShowS #

NFData2 (Const :: Type -> Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Const a b -> () #

Hashable2 (Const :: Type -> Type -> Type) 
Instance details

Defined in Data.Hashable.Class

Methods

liftHashWithSalt2 :: (Int -> a -> Int) -> (Int -> b -> Int) -> Int -> Const a b -> Int #

Functor (Const m :: Type -> Type)

Since: base-2.1

Instance details

Defined in Data.Functor.Const

Methods

fmap :: (a -> b) -> Const m a -> Const m b #

(<$) :: a -> Const m b -> Const m a #

Monoid m => Applicative (Const m :: Type -> Type)

Since: base-2.0.1

Instance details

Defined in Data.Functor.Const

Methods

pure :: a -> Const m a #

(<*>) :: Const m (a -> b) -> Const m a -> Const m b #

liftA2 :: (a -> b -> c) -> Const m a -> Const m b -> Const m c #

(*>) :: Const m a -> Const m b -> Const m b #

(<*) :: Const m a -> Const m b -> Const m a #

Foldable (Const m :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Functor.Const

Methods

fold :: Monoid m0 => Const m m0 -> m0 #

foldMap :: Monoid m0 => (a -> m0) -> Const m a -> m0 #

foldr :: (a -> b -> b) -> b -> Const m a -> b #

foldr' :: (a -> b -> b) -> b -> Const m a -> b #

foldl :: (b -> a -> b) -> b -> Const m a -> b #

foldl' :: (b -> a -> b) -> b -> Const m a -> b #

foldr1 :: (a -> a -> a) -> Const m a -> a #

foldl1 :: (a -> a -> a) -> Const m a -> a #

toList :: Const m a -> [a] #

null :: Const m a -> Bool #

length :: Const m a -> Int #

elem :: Eq a => a -> Const m a -> Bool #

maximum :: Ord a => Const m a -> a #

minimum :: Ord a => Const m a -> a #

sum :: Num a => Const m a -> a #

product :: Num a => Const m a -> a #

Traversable (Const m :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Const m a -> f (Const m b) #

sequenceA :: Applicative f => Const m (f a) -> f (Const m a) #

mapM :: Monad m0 => (a -> m0 b) -> Const m a -> m0 (Const m b) #

sequence :: Monad m0 => Const m (m0 a) -> m0 (Const m a) #

ToJSON a => ToJSON1 (Const a :: Type -> Type) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a0 -> Value) -> ([a0] -> Value) -> Const a a0 -> Value #

liftToJSONList :: (a0 -> Value) -> ([a0] -> Value) -> [Const a a0] -> Value #

liftToEncoding :: (a0 -> Encoding) -> ([a0] -> Encoding) -> Const a a0 -> Encoding #

liftToEncodingList :: (a0 -> Encoding) -> ([a0] -> Encoding) -> [Const a a0] -> Encoding #

FromJSON a => FromJSON1 (Const a :: Type -> Type) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a0) -> (Value -> Parser [a0]) -> Value -> Parser (Const a a0) #

liftParseJSONList :: (Value -> Parser a0) -> (Value -> Parser [a0]) -> Value -> Parser [Const a a0] #

Eq a => Eq1 (Const a :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftEq :: (a0 -> b -> Bool) -> Const a a0 -> Const a b -> Bool #

Ord a => Ord1 (Const a :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftCompare :: (a0 -> b -> Ordering) -> Const a a0 -> Const a b -> Ordering #

Read a => Read1 (Const a :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftReadsPrec :: (Int -> ReadS a0) -> ReadS [a0] -> Int -> ReadS (Const a a0) #

liftReadList :: (Int -> ReadS a0) -> ReadS [a0] -> ReadS [Const a a0] #

liftReadPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec (Const a a0) #

liftReadListPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec [Const a a0] #

Show a => Show1 (Const a :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Classes

Methods

liftShowsPrec :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> Int -> Const a a0 -> ShowS #

liftShowList :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> [Const a a0] -> ShowS #

NFData a => NFData1 (Const a :: Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Const a a0 -> () #

Hashable a => Hashable1 (Const a :: Type -> Type) 
Instance details

Defined in Data.Hashable.Class

Methods

liftHashWithSalt :: (Int -> a0 -> Int) -> Int -> Const a a0 -> Int #

Bounded a => Bounded (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

minBound :: Const a b #

maxBound :: Const a b #

Enum a => Enum (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

succ :: Const a b -> Const a b #

pred :: Const a b -> Const a b #

toEnum :: Int -> Const a b #

fromEnum :: Const a b -> Int #

enumFrom :: Const a b -> [Const a b] #

enumFromThen :: Const a b -> Const a b -> [Const a b] #

enumFromTo :: Const a b -> Const a b -> [Const a b] #

enumFromThenTo :: Const a b -> Const a b -> Const a b -> [Const a b] #

Eq a => Eq (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(==) :: Const a b -> Const a b -> Bool #

(/=) :: Const a b -> Const a b -> Bool #

Floating a => Floating (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

pi :: Const a b #

exp :: Const a b -> Const a b #

log :: Const a b -> Const a b #

sqrt :: Const a b -> Const a b #

(**) :: Const a b -> Const a b -> Const a b #

logBase :: Const a b -> Const a b -> Const a b #

sin :: Const a b -> Const a b #

cos :: Const a b -> Const a b #

tan :: Const a b -> Const a b #

asin :: Const a b -> Const a b #

acos :: Const a b -> Const a b #

atan :: Const a b -> Const a b #

sinh :: Const a b -> Const a b #

cosh :: Const a b -> Const a b #

tanh :: Const a b -> Const a b #

asinh :: Const a b -> Const a b #

acosh :: Const a b -> Const a b #

atanh :: Const a b -> Const a b #

log1p :: Const a b -> Const a b #

expm1 :: Const a b -> Const a b #

log1pexp :: Const a b -> Const a b #

log1mexp :: Const a b -> Const a b #

Fractional a => Fractional (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(/) :: Const a b -> Const a b -> Const a b #

recip :: Const a b -> Const a b #

fromRational :: Rational -> Const a b #

Integral a => Integral (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

quot :: Const a b -> Const a b -> Const a b #

rem :: Const a b -> Const a b -> Const a b #

div :: Const a b -> Const a b -> Const a b #

mod :: Const a b -> Const a b -> Const a b #

quotRem :: Const a b -> Const a b -> (Const a b, Const a b) #

divMod :: Const a b -> Const a b -> (Const a b, Const a b) #

toInteger :: Const a b -> Integer #

(Typeable k, Data a, Typeable b) => Data (Const a b)

Since: base-4.10.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b0. Data d => c (d -> b0) -> d -> c b0) -> (forall g. g -> c g) -> Const a b -> c (Const a b) #

gunfold :: (forall b0 r. Data b0 => c (b0 -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Const a b) #

toConstr :: Const a b -> Constr #

dataTypeOf :: Const a b -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Const a b)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Const a b)) #

gmapT :: (forall b0. Data b0 => b0 -> b0) -> Const a b -> Const a b #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Const a b -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Const a b -> r #

gmapQ :: (forall d. Data d => d -> u) -> Const a b -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Const a b -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) #

Num a => Num (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(+) :: Const a b -> Const a b -> Const a b #

(-) :: Const a b -> Const a b -> Const a b #

(*) :: Const a b -> Const a b -> Const a b #

negate :: Const a b -> Const a b #

abs :: Const a b -> Const a b #

signum :: Const a b -> Const a b #

fromInteger :: Integer -> Const a b #

Ord a => Ord (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

compare :: Const a b -> Const a b -> Ordering #

(<) :: Const a b -> Const a b -> Bool #

(<=) :: Const a b -> Const a b -> Bool #

(>) :: Const a b -> Const a b -> Bool #

(>=) :: Const a b -> Const a b -> Bool #

max :: Const a b -> Const a b -> Const a b #

min :: Const a b -> Const a b -> Const a b #

Read a => Read (Const a b)

This instance would be equivalent to the derived instances of the Const newtype if the runConst field were removed

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Const

Real a => Real (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

toRational :: Const a b -> Rational #

RealFloat a => RealFloat (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

floatRadix :: Const a b -> Integer #

floatDigits :: Const a b -> Int #

floatRange :: Const a b -> (Int, Int) #

decodeFloat :: Const a b -> (Integer, Int) #

encodeFloat :: Integer -> Int -> Const a b #

exponent :: Const a b -> Int #

significand :: Const a b -> Const a b #

scaleFloat :: Int -> Const a b -> Const a b #

isNaN :: Const a b -> Bool #

isInfinite :: Const a b -> Bool #

isDenormalized :: Const a b -> Bool #

isNegativeZero :: Const a b -> Bool #

isIEEE :: Const a b -> Bool #

atan2 :: Const a b -> Const a b -> Const a b #

RealFrac a => RealFrac (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

properFraction :: Integral b0 => Const a b -> (b0, Const a b) #

truncate :: Integral b0 => Const a b -> b0 #

round :: Integral b0 => Const a b -> b0 #

ceiling :: Integral b0 => Const a b -> b0 #

floor :: Integral b0 => Const a b -> b0 #

Show a => Show (Const a b)

This instance would be equivalent to the derived instances of the Const newtype if the runConst field were removed

Since: base-4.8.0.0

Instance details

Defined in Data.Functor.Const

Methods

showsPrec :: Int -> Const a b -> ShowS #

show :: Const a b -> String #

showList :: [Const a b] -> ShowS #

Ix a => Ix (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

range :: (Const a b, Const a b) -> [Const a b] #

index :: (Const a b, Const a b) -> Const a b -> Int #

unsafeIndex :: (Const a b, Const a b) -> Const a b -> Int

inRange :: (Const a b, Const a b) -> Const a b -> Bool #

rangeSize :: (Const a b, Const a b) -> Int #

unsafeRangeSize :: (Const a b, Const a b) -> Int

Generic (Const a b) 
Instance details

Defined in Data.Functor.Const

Associated Types

type Rep (Const a b) :: Type -> Type #

Methods

from :: Const a b -> Rep (Const a b) x #

to :: Rep (Const a b) x -> Const a b #

Semigroup a => Semigroup (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(<>) :: Const a b -> Const a b -> Const a b #

sconcat :: NonEmpty (Const a b) -> Const a b #

stimes :: Integral b0 => b0 -> Const a b -> Const a b #

Monoid a => Monoid (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

mempty :: Const a b #

mappend :: Const a b -> Const a b -> Const a b #

mconcat :: [Const a b] -> Const a b #

NFData a => NFData (Const a b)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Const a b -> () #

Hashable a => Hashable (Const a b) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Const a b -> Int #

hash :: Const a b -> Int #

ToJSON a => ToJSON (Const a b) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Const a b -> Value #

toEncoding :: Const a b -> Encoding #

toJSONList :: [Const a b] -> Value #

toEncodingList :: [Const a b] -> Encoding #

FromJSON a => FromJSON (Const a b) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Const a b) #

parseJSONList :: Value -> Parser [Const a b] #

Storable a => Storable (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

sizeOf :: Const a b -> Int #

alignment :: Const a b -> Int #

peekElemOff :: Ptr (Const a b) -> Int -> IO (Const a b) #

pokeElemOff :: Ptr (Const a b) -> Int -> Const a b -> IO () #

peekByteOff :: Ptr b0 -> Int -> IO (Const a b) #

pokeByteOff :: Ptr b0 -> Int -> Const a b -> IO () #

peek :: Ptr (Const a b) -> IO (Const a b) #

poke :: Ptr (Const a b) -> Const a b -> IO () #

Bits a => Bits (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

Methods

(.&.) :: Const a b -> Const a b -> Const a b #

(.|.) :: Const a b -> Const a b -> Const a b #

xor :: Const a b -> Const a b -> Const a b #

complement :: Const a b -> Const a b #

shift :: Const a b -> Int -> Const a b #

rotate :: Const a b -> Int -> Const a b #

zeroBits :: Const a b #

bit :: Int -> Const a b #

setBit :: Const a b -> Int -> Const a b #

clearBit :: Const a b -> Int -> Const a b #

complementBit :: Const a b -> Int -> Const a b #

testBit :: Const a b -> Int -> Bool #

bitSizeMaybe :: Const a b -> Maybe Int #

bitSize :: Const a b -> Int #

isSigned :: Const a b -> Bool #

shiftL :: Const a b -> Int -> Const a b #

unsafeShiftL :: Const a b -> Int -> Const a b #

shiftR :: Const a b -> Int -> Const a b #

unsafeShiftR :: Const a b -> Int -> Const a b #

rotateL :: Const a b -> Int -> Const a b #

rotateR :: Const a b -> Int -> Const a b #

popCount :: Const a b -> Int #

FiniteBits a => FiniteBits (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

type Rep1 (Const a :: k -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

type Rep1 (Const a :: k -> Type) = D1 (MetaData "Const" "Data.Functor.Const" "base" True) (C1 (MetaCons "Const" PrefixI True) (S1 (MetaSel (Just "getConst") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep (Const a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Functor.Const

type Rep (Const a b) = D1 (MetaData "Const" "Data.Functor.Const" "base" True) (C1 (MetaCons "Const" PrefixI True) (S1 (MetaSel (Just "getConst") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))

newtype ZipList a #

Lists, but with an Applicative functor based on zipping.

Constructors

ZipList 

Fields

Instances
Functor ZipList

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a -> b) -> ZipList a -> ZipList b #

(<$) :: a -> ZipList b -> ZipList a #

Applicative ZipList
f '<$>' 'ZipList' xs1 '<*>' ... '<*>' 'ZipList' xsN
    = 'ZipList' (zipWithN f xs1 ... xsN)

where zipWithN refers to the zipWith function of the appropriate arity (zipWith, zipWith3, zipWith4, ...). For example:

(\a b c -> stimes c [a, b]) <$> ZipList "abcd" <*> ZipList "567" <*> ZipList [1..]
    = ZipList (zipWith3 (\a b c -> stimes c [a, b]) "abcd" "567" [1..])
    = ZipList {getZipList = ["a5","b6b6","c7c7c7"]}

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a -> ZipList a #

(<*>) :: ZipList (a -> b) -> ZipList a -> ZipList b #

liftA2 :: (a -> b -> c) -> ZipList a -> ZipList b -> ZipList c #

(*>) :: ZipList a -> ZipList b -> ZipList b #

(<*) :: ZipList a -> ZipList b -> ZipList a #

Foldable ZipList

Since: base-4.9.0.0

Instance details

Defined in Control.Applicative

Methods

fold :: Monoid m => ZipList m -> m #

foldMap :: Monoid m => (a -> m) -> ZipList a -> m #

foldr :: (a -> b -> b) -> b -> ZipList a -> b #

foldr' :: (a -> b -> b) -> b -> ZipList a -> b #

foldl :: (b -> a -> b) -> b -> ZipList a -> b #

foldl' :: (b -> a -> b) -> b -> ZipList a -> b #

foldr1 :: (a -> a -> a) -> ZipList a -> a #

foldl1 :: (a -> a -> a) -> ZipList a -> a #

toList :: ZipList a -> [a] #

null :: ZipList a -> Bool #

length :: ZipList a -> Int #

elem :: Eq a => a -> ZipList a -> Bool #

maximum :: Ord a => ZipList a -> a #

minimum :: Ord a => ZipList a -> a #

sum :: Num a => ZipList a -> a #

product :: Num a => ZipList a -> a #

Traversable ZipList

Since: base-4.9.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> ZipList a -> f (ZipList b) #

sequenceA :: Applicative f => ZipList (f a) -> f (ZipList a) #

mapM :: Monad m => (a -> m b) -> ZipList a -> m (ZipList b) #

sequence :: Monad m => ZipList (m a) -> m (ZipList a) #

Alternative ZipList

Since: base-4.11.0.0

Instance details

Defined in Control.Applicative

Methods

empty :: ZipList a #

(<|>) :: ZipList a -> ZipList a -> ZipList a #

some :: ZipList a -> ZipList [a] #

many :: ZipList a -> ZipList [a] #

NFData1 ZipList

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> ZipList a -> () #

Eq a => Eq (ZipList a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Methods

(==) :: ZipList a -> ZipList a -> Bool #

(/=) :: ZipList a -> ZipList a -> Bool #

Ord a => Ord (ZipList a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Methods

compare :: ZipList a -> ZipList a -> Ordering #

(<) :: ZipList a -> ZipList a -> Bool #

(<=) :: ZipList a -> ZipList a -> Bool #

(>) :: ZipList a -> ZipList a -> Bool #

(>=) :: ZipList a -> ZipList a -> Bool #

max :: ZipList a -> ZipList a -> ZipList a #

min :: ZipList a -> ZipList a -> ZipList a #

Read a => Read (ZipList a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Show a => Show (ZipList a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Methods

showsPrec :: Int -> ZipList a -> ShowS #

show :: ZipList a -> String #

showList :: [ZipList a] -> ShowS #

Generic (ZipList a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (ZipList a) :: Type -> Type #

Methods

from :: ZipList a -> Rep (ZipList a) x #

to :: Rep (ZipList a) x -> ZipList a #

NFData a => NFData (ZipList a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: ZipList a -> () #

Generic1 ZipList 
Instance details

Defined in Control.Applicative

Associated Types

type Rep1 ZipList :: k -> Type #

Methods

from1 :: ZipList a -> Rep1 ZipList a #

to1 :: Rep1 ZipList a -> ZipList a #

type Rep (ZipList a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep (ZipList a) = D1 (MetaData "ZipList" "Control.Applicative" "base" True) (C1 (MetaCons "ZipList" PrefixI True) (S1 (MetaSel (Just "getZipList") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 [a])))
type Rep1 ZipList

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep1 ZipList = D1 (MetaData "ZipList" "Control.Applicative" "base" True) (C1 (MetaCons "ZipList" PrefixI True) (S1 (MetaSel (Just "getZipList") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec1 [])))

newtype WrappedArrow (a :: Type -> Type -> Type) b c #

Constructors

WrapArrow 

Fields

Instances
Generic1 (WrappedArrow a b :: Type -> Type) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep1 (WrappedArrow a b) :: k -> Type #

Methods

from1 :: WrappedArrow a b a0 -> Rep1 (WrappedArrow a b) a0 #

to1 :: Rep1 (WrappedArrow a b) a0 -> WrappedArrow a b a0 #

Arrow a => Functor (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 #

(<$) :: a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 #

Arrow a => Applicative (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a0 -> WrappedArrow a b a0 #

(<*>) :: WrappedArrow a b (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 #

liftA2 :: (a0 -> b0 -> c) -> WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b c #

(*>) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b b0 #

(<*) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 #

(ArrowZero a, ArrowPlus a) => Alternative (WrappedArrow a b)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

empty :: WrappedArrow a b a0 #

(<|>) :: WrappedArrow a b a0 -> WrappedArrow a b a0 -> WrappedArrow a b a0 #

some :: WrappedArrow a b a0 -> WrappedArrow a b [a0] #

many :: WrappedArrow a b a0 -> WrappedArrow a b [a0] #

Generic (WrappedArrow a b c) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedArrow a b c) :: Type -> Type #

Methods

from :: WrappedArrow a b c -> Rep (WrappedArrow a b c) x #

to :: Rep (WrappedArrow a b c) x -> WrappedArrow a b c #

type Rep1 (WrappedArrow a b :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep1 (WrappedArrow a b :: Type -> Type) = D1 (MetaData "WrappedArrow" "Control.Applicative" "base" True) (C1 (MetaCons "WrapArrow" PrefixI True) (S1 (MetaSel (Just "unwrapArrow") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec1 (a b))))
type Rep (WrappedArrow a b c)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep (WrappedArrow a b c) = D1 (MetaData "WrappedArrow" "Control.Applicative" "base" True) (C1 (MetaCons "WrapArrow" PrefixI True) (S1 (MetaSel (Just "unwrapArrow") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (a b c))))

newtype WrappedMonad (m :: Type -> Type) a #

Constructors

WrapMonad 

Fields

Instances
Monad m => Monad (WrappedMonad m)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

Methods

(>>=) :: WrappedMonad m a -> (a -> WrappedMonad m b) -> WrappedMonad m b #

(>>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b #

return :: a -> WrappedMonad m a #

fail :: String -> WrappedMonad m a #

Monad m => Functor (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

fmap :: (a -> b) -> WrappedMonad m a -> WrappedMonad m b #

(<$) :: a -> WrappedMonad m b -> WrappedMonad m a #

Monad m => Applicative (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

pure :: a -> WrappedMonad m a #

(<*>) :: WrappedMonad m (a -> b) -> WrappedMonad m a -> WrappedMonad m b #

liftA2 :: (a -> b -> c) -> WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m c #

(*>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b #

(<*) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m a #

MonadPlus m => Alternative (WrappedMonad m)

Since: base-2.1

Instance details

Defined in Control.Applicative

Methods

empty :: WrappedMonad m a #

(<|>) :: WrappedMonad m a -> WrappedMonad m a -> WrappedMonad m a #

some :: WrappedMonad m a -> WrappedMonad m [a] #

many :: WrappedMonad m a -> WrappedMonad m [a] #

Generic1 (WrappedMonad m :: Type -> Type) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep1 (WrappedMonad m) :: k -> Type #

Methods

from1 :: WrappedMonad m a -> Rep1 (WrappedMonad m) a #

to1 :: Rep1 (WrappedMonad m) a -> WrappedMonad m a #

Generic (WrappedMonad m a) 
Instance details

Defined in Control.Applicative

Associated Types

type Rep (WrappedMonad m a) :: Type -> Type #

Methods

from :: WrappedMonad m a -> Rep (WrappedMonad m a) x #

to :: Rep (WrappedMonad m a) x -> WrappedMonad m a #

type Rep1 (WrappedMonad m :: Type -> Type)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep1 (WrappedMonad m :: Type -> Type) = D1 (MetaData "WrappedMonad" "Control.Applicative" "base" True) (C1 (MetaCons "WrapMonad" PrefixI True) (S1 (MetaSel (Just "unwrapMonad") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec1 m)))
type Rep (WrappedMonad m a)

Since: base-4.7.0.0

Instance details

Defined in Control.Applicative

type Rep (WrappedMonad m a) = D1 (MetaData "WrappedMonad" "Control.Applicative" "base" True) (C1 (MetaCons "WrapMonad" PrefixI True) (S1 (MetaSel (Just "unwrapMonad") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (m a))))

forM :: (Traversable t, Monad m) => t a -> (a -> m b) -> m (t b) #

forM is mapM with its arguments flipped. For a version that ignores the results see forM_.

(>=>) :: Monad m => (a -> m b) -> (b -> m c) -> a -> m c infixr 1 #

Left-to-right composition of Kleisli arrows.

(<=<) :: Monad m => (b -> m c) -> (a -> m b) -> a -> m c infixr 1 #

Right-to-left composition of Kleisli arrows. (>=>), with the arguments flipped.

Note how this operator resembles function composition (.):

(.)   ::            (b ->   c) -> (a ->   b) -> a ->   c
(<=<) :: Monad m => (b -> m c) -> (a -> m b) -> a -> m c

forever :: Applicative f => f a -> f b #

Repeat an action indefinitely.

Examples

Expand

A common use of forever is to process input from network sockets, Handles, and channels (e.g. MVar and Chan).

For example, here is how we might implement an echo server, using forever both to listen for client connections on a network socket and to echo client input on client connection handles:

echoServer :: Socket -> IO ()
echoServer socket = forever $ do
  client <- accept socket
  forkFinally (echo client) (\_ -> hClose client)
  where
    echo :: Handle -> IO ()
    echo client = forever $
      hGetLine client >>= hPutStrLn client

mapAndUnzipM :: Applicative m => (a -> m (b, c)) -> [a] -> m ([b], [c]) #

The mapAndUnzipM function maps its first argument over a list, returning the result as a pair of lists. This function is mainly used with complicated data structures or a state-transforming monad.

zipWithM :: Applicative m => (a -> b -> m c) -> [a] -> [b] -> m [c] #

The zipWithM function generalizes zipWith to arbitrary applicative functors.

zipWithM_ :: Applicative m => (a -> b -> m c) -> [a] -> [b] -> m () #

zipWithM_ is the extension of zipWithM which ignores the final result.

foldM_ :: (Foldable t, Monad m) => (b -> a -> m b) -> b -> t a -> m () #

Like foldM, but discards the result.

replicateM :: Applicative m => Int -> m a -> m [a] #

replicateM n act performs the action n times, gathering the results.

replicateM_ :: Applicative m => Int -> m a -> m () #

Like replicateM, but discards the result.

(<$!>) :: Monad m => (a -> b) -> m a -> m b infixl 4 #

Strict version of <$>.

Since: base-4.8.0.0

mfilter :: MonadPlus m => (a -> Bool) -> m a -> m a #

Direct MonadPlus equivalent of filter.

Examples

Expand

The filter function is just mfilter specialized to the list monad:

filter = ( mfilter :: (a -> Bool) -> [a] -> [a] )

An example using mfilter with the Maybe monad:

>>> mfilter odd (Just 1)
Just 1
>>> mfilter odd (Just 2)
Nothing

vacuous :: Functor f => f Void -> f a #

If Void is uninhabited then any Functor that holds only values of type Void is holding no values.

Since: base-4.8.0.0

absurd :: Void -> a #

Since Void values logically don't exist, this witnesses the logical reasoning tool of "ex falso quodlibet".

>>> let x :: Either Void Int; x = Right 5
>>> :{
case x of
    Right r -> r
    Left l  -> absurd l
:}
5

Since: base-4.8.0.0

data Void #

Uninhabited data type

Since: base-4.8.0.0

Instances
Eq Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

(==) :: Void -> Void -> Bool #

(/=) :: Void -> Void -> Bool #

Data Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Void -> c Void #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Void #

toConstr :: Void -> Constr #

dataTypeOf :: Void -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Void) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Void) #

gmapT :: (forall b. Data b => b -> b) -> Void -> Void #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Void -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Void -> r #

gmapQ :: (forall d. Data d => d -> u) -> Void -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Void -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Void -> m Void #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Void -> m Void #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Void -> m Void #

Ord Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

compare :: Void -> Void -> Ordering #

(<) :: Void -> Void -> Bool #

(<=) :: Void -> Void -> Bool #

(>) :: Void -> Void -> Bool #

(>=) :: Void -> Void -> Bool #

max :: Void -> Void -> Void #

min :: Void -> Void -> Void #

Read Void

Reading a Void value is always a parse error, considering Void as a data type with no constructors.

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Show Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

showsPrec :: Int -> Void -> ShowS #

show :: Void -> String #

showList :: [Void] -> ShowS #

Ix Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

Methods

range :: (Void, Void) -> [Void] #

index :: (Void, Void) -> Void -> Int #

unsafeIndex :: (Void, Void) -> Void -> Int

inRange :: (Void, Void) -> Void -> Bool #

rangeSize :: (Void, Void) -> Int #

unsafeRangeSize :: (Void, Void) -> Int

Generic Void 
Instance details

Defined in Data.Void

Associated Types

type Rep Void :: Type -> Type #

Methods

from :: Void -> Rep Void x #

to :: Rep Void x -> Void #

Semigroup Void

Since: base-4.9.0.0

Instance details

Defined in Data.Void

Methods

(<>) :: Void -> Void -> Void #

sconcat :: NonEmpty Void -> Void #

stimes :: Integral b => b -> Void -> Void #

NFData Void

Defined as rnf = absurd.

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Void -> () #

Hashable Void 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Void -> Int #

hash :: Void -> Int #

ToJSON Void 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON Void 
Instance details

Defined in Data.Aeson.Types.FromJSON

Exception Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

ShowErrorComponent Void 
Instance details

Defined in Text.Megaparsec.Error

type Rep Void

Since: base-4.8.0.0

Instance details

Defined in Data.Void

type Rep Void = D1 (MetaData "Void" "Data.Void" "base" False) (V1 :: Type -> Type)

option :: b -> (a -> b) -> Option a -> b #

Fold an Option case-wise, just like maybe.

mtimesDefault :: (Integral b, Monoid a) => b -> a -> a #

Repeat a value n times.

mtimesDefault n a = a <> a <> ... <> a  -- using <> (n-1) times

Implemented using stimes and mempty.

This is a suitable definition for an mtimes member of Monoid.

diff :: Semigroup m => m -> Endo m #

This lets you use a difference list of a Semigroup as a Monoid.

cycle1 :: Semigroup m => m -> m #

A generalization of cycle to an arbitrary Semigroup. May fail to terminate for some values in some semigroups.

newtype Min a #

Constructors

Min 

Fields

Instances
Monad Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Min a -> (a -> Min b) -> Min b #

(>>) :: Min a -> Min b -> Min b #

return :: a -> Min a #

fail :: String -> Min a #

Functor Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Min a -> Min b #

(<$) :: a -> Min b -> Min a #

MonadFix Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mfix :: (a -> Min a) -> Min a #

Applicative Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Min a #

(<*>) :: Min (a -> b) -> Min a -> Min b #

liftA2 :: (a -> b -> c) -> Min a -> Min b -> Min c #

(*>) :: Min a -> Min b -> Min b #

(<*) :: Min a -> Min b -> Min a #

Foldable Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Min m -> m #

foldMap :: Monoid m => (a -> m) -> Min a -> m #

foldr :: (a -> b -> b) -> b -> Min a -> b #

foldr' :: (a -> b -> b) -> b -> Min a -> b #

foldl :: (b -> a -> b) -> b -> Min a -> b #

foldl' :: (b -> a -> b) -> b -> Min a -> b #

foldr1 :: (a -> a -> a) -> Min a -> a #

foldl1 :: (a -> a -> a) -> Min a -> a #

toList :: Min a -> [a] #

null :: Min a -> Bool #

length :: Min a -> Int #

elem :: Eq a => a -> Min a -> Bool #

maximum :: Ord a => Min a -> a #

minimum :: Ord a => Min a -> a #

sum :: Num a => Min a -> a #

product :: Num a => Min a -> a #

Traversable Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Min a -> f (Min b) #

sequenceA :: Applicative f => Min (f a) -> f (Min a) #

mapM :: Monad m => (a -> m b) -> Min a -> m (Min b) #

sequence :: Monad m => Min (m a) -> m (Min a) #

ToJSON1 Min 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Min a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Min a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Min a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Min a] -> Encoding #

FromJSON1 Min 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Min a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Min a] #

NFData1 Min

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Min a -> () #

Bounded a => Bounded (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

minBound :: Min a #

maxBound :: Min a #

Enum a => Enum (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

succ :: Min a -> Min a #

pred :: Min a -> Min a #

toEnum :: Int -> Min a #

fromEnum :: Min a -> Int #

enumFrom :: Min a -> [Min a] #

enumFromThen :: Min a -> Min a -> [Min a] #

enumFromTo :: Min a -> Min a -> [Min a] #

enumFromThenTo :: Min a -> Min a -> Min a -> [Min a] #

Eq a => Eq (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Min a -> Min a -> Bool #

(/=) :: Min a -> Min a -> Bool #

Data a => Data (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Min a -> c (Min a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Min a) #

toConstr :: Min a -> Constr #

dataTypeOf :: Min a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Min a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Min a)) #

gmapT :: (forall b. Data b => b -> b) -> Min a -> Min a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Min a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Min a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Min a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Min a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Min a -> m (Min a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Min a -> m (Min a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Min a -> m (Min a) #

Num a => Num (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(+) :: Min a -> Min a -> Min a #

(-) :: Min a -> Min a -> Min a #

(*) :: Min a -> Min a -> Min a #

negate :: Min a -> Min a #

abs :: Min a -> Min a #

signum :: Min a -> Min a #

fromInteger :: Integer -> Min a #

Ord a => Ord (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Min a -> Min a -> Ordering #

(<) :: Min a -> Min a -> Bool #

(<=) :: Min a -> Min a -> Bool #

(>) :: Min a -> Min a -> Bool #

(>=) :: Min a -> Min a -> Bool #

max :: Min a -> Min a -> Min a #

min :: Min a -> Min a -> Min a #

Read a => Read (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show a => Show (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Min a -> ShowS #

show :: Min a -> String #

showList :: [Min a] -> ShowS #

Generic (Min a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Min a) :: Type -> Type #

Methods

from :: Min a -> Rep (Min a) x #

to :: Rep (Min a) x -> Min a #

Ord a => Semigroup (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Min a -> Min a -> Min a #

sconcat :: NonEmpty (Min a) -> Min a #

stimes :: Integral b => b -> Min a -> Min a #

(Ord a, Bounded a) => Monoid (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mempty :: Min a #

mappend :: Min a -> Min a -> Min a #

mconcat :: [Min a] -> Min a #

NFData a => NFData (Min a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Min a -> () #

Hashable a => Hashable (Min a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Min a -> Int #

hash :: Min a -> Int #

ToJSON a => ToJSON (Min a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Min a -> Value #

toEncoding :: Min a -> Encoding #

toJSONList :: [Min a] -> Value #

toEncodingList :: [Min a] -> Encoding #

FromJSON a => FromJSON (Min a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Min a) #

parseJSONList :: Value -> Parser [Min a] #

Generic1 Min 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 Min :: k -> Type #

Methods

from1 :: Min a -> Rep1 Min a #

to1 :: Rep1 Min a -> Min a #

type Rep (Min a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (Min a) = D1 (MetaData "Min" "Data.Semigroup" "base" True) (C1 (MetaCons "Min" PrefixI True) (S1 (MetaSel (Just "getMin") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Min

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 Min = D1 (MetaData "Min" "Data.Semigroup" "base" True) (C1 (MetaCons "Min" PrefixI True) (S1 (MetaSel (Just "getMin") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

newtype Max a #

Constructors

Max 

Fields

Instances
Monad Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Max a -> (a -> Max b) -> Max b #

(>>) :: Max a -> Max b -> Max b #

return :: a -> Max a #

fail :: String -> Max a #

Functor Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Max a -> Max b #

(<$) :: a -> Max b -> Max a #

MonadFix Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mfix :: (a -> Max a) -> Max a #

Applicative Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Max a #

(<*>) :: Max (a -> b) -> Max a -> Max b #

liftA2 :: (a -> b -> c) -> Max a -> Max b -> Max c #

(*>) :: Max a -> Max b -> Max b #

(<*) :: Max a -> Max b -> Max a #

Foldable Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Max m -> m #

foldMap :: Monoid m => (a -> m) -> Max a -> m #

foldr :: (a -> b -> b) -> b -> Max a -> b #

foldr' :: (a -> b -> b) -> b -> Max a -> b #

foldl :: (b -> a -> b) -> b -> Max a -> b #

foldl' :: (b -> a -> b) -> b -> Max a -> b #

foldr1 :: (a -> a -> a) -> Max a -> a #

foldl1 :: (a -> a -> a) -> Max a -> a #

toList :: Max a -> [a] #

null :: Max a -> Bool #

length :: Max a -> Int #

elem :: Eq a => a -> Max a -> Bool #

maximum :: Ord a => Max a -> a #

minimum :: Ord a => Max a -> a #

sum :: Num a => Max a -> a #

product :: Num a => Max a -> a #

Traversable Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Max a -> f (Max b) #

sequenceA :: Applicative f => Max (f a) -> f (Max a) #

mapM :: Monad m => (a -> m b) -> Max a -> m (Max b) #

sequence :: Monad m => Max (m a) -> m (Max a) #

ToJSON1 Max 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Max a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Max a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Max a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Max a] -> Encoding #

FromJSON1 Max 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Max a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Max a] #

NFData1 Max

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Max a -> () #

Bounded a => Bounded (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

minBound :: Max a #

maxBound :: Max a #

Enum a => Enum (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

succ :: Max a -> Max a #

pred :: Max a -> Max a #

toEnum :: Int -> Max a #

fromEnum :: Max a -> Int #

enumFrom :: Max a -> [Max a] #

enumFromThen :: Max a -> Max a -> [Max a] #

enumFromTo :: Max a -> Max a -> [Max a] #

enumFromThenTo :: Max a -> Max a -> Max a -> [Max a] #

Eq a => Eq (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Max a -> Max a -> Bool #

(/=) :: Max a -> Max a -> Bool #

Data a => Data (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Max a -> c (Max a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Max a) #

toConstr :: Max a -> Constr #

dataTypeOf :: Max a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Max a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Max a)) #

gmapT :: (forall b. Data b => b -> b) -> Max a -> Max a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Max a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Max a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Max a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Max a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Max a -> m (Max a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Max a -> m (Max a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Max a -> m (Max a) #

Num a => Num (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(+) :: Max a -> Max a -> Max a #

(-) :: Max a -> Max a -> Max a #

(*) :: Max a -> Max a -> Max a #

negate :: Max a -> Max a #

abs :: Max a -> Max a #

signum :: Max a -> Max a #

fromInteger :: Integer -> Max a #

Ord a => Ord (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Max a -> Max a -> Ordering #

(<) :: Max a -> Max a -> Bool #

(<=) :: Max a -> Max a -> Bool #

(>) :: Max a -> Max a -> Bool #

(>=) :: Max a -> Max a -> Bool #

max :: Max a -> Max a -> Max a #

min :: Max a -> Max a -> Max a #

Read a => Read (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show a => Show (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Max a -> ShowS #

show :: Max a -> String #

showList :: [Max a] -> ShowS #

Generic (Max a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Max a) :: Type -> Type #

Methods

from :: Max a -> Rep (Max a) x #

to :: Rep (Max a) x -> Max a #

Ord a => Semigroup (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Max a -> Max a -> Max a #

sconcat :: NonEmpty (Max a) -> Max a #

stimes :: Integral b => b -> Max a -> Max a #

(Ord a, Bounded a) => Monoid (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mempty :: Max a #

mappend :: Max a -> Max a -> Max a #

mconcat :: [Max a] -> Max a #

NFData a => NFData (Max a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Max a -> () #

Hashable a => Hashable (Max a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Max a -> Int #

hash :: Max a -> Int #

ToJSON a => ToJSON (Max a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

toJSON :: Max a -> Value #

toEncoding :: Max a -> Encoding #

toJSONList :: [Max a] -> Value #

toEncodingList :: [Max a] -> Encoding #

FromJSON a => FromJSON (Max a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseJSON :: Value -> Parser (Max a) #

parseJSONList :: Value -> Parser [Max a] #

Generic1 Max 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 Max :: k -> Type #

Methods

from1 :: Max a -> Rep1 Max a #

to1 :: Rep1 Max a -> Max a #

type Rep (Max a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (Max a) = D1 (MetaData "Max" "Data.Semigroup" "base" True) (C1 (MetaCons "Max" PrefixI True) (S1 (MetaSel (Just "getMax") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Max

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 Max = D1 (MetaData "Max" "Data.Semigroup" "base" True) (C1 (MetaCons "Max" PrefixI True) (S1 (MetaSel (Just "getMax") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

data Arg a b #

Arg isn't itself a Semigroup in its own right, but it can be placed inside Min and Max to compute an arg min or arg max.

Constructors

Arg a b 
Instances
Bitraversable Arg

Since: base-4.10.0.0

Instance details

Defined in Data.Semigroup

Methods

bitraverse :: Applicative f => (a -> f c) -> (b -> f d) -> Arg a b -> f (Arg c d) #

Bifoldable Arg

Since: base-4.10.0.0

Instance details

Defined in Data.Semigroup

Methods

bifold :: Monoid m => Arg m m -> m #

bifoldMap :: Monoid m => (a -> m) -> (b -> m) -> Arg a b -> m #

bifoldr :: (a -> c -> c) -> (b -> c -> c) -> c -> Arg a b -> c #

bifoldl :: (c -> a -> c) -> (c -> b -> c) -> c -> Arg a b -> c #

Bifunctor Arg

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

bimap :: (a -> b) -> (c -> d) -> Arg a c -> Arg b d #

first :: (a -> b) -> Arg a c -> Arg b c #

second :: (b -> c) -> Arg a b -> Arg a c #

NFData2 Arg

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Arg a b -> () #

Functor (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a0 -> b) -> Arg a a0 -> Arg a b #

(<$) :: a0 -> Arg a b -> Arg a a0 #

Foldable (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Arg a m -> m #

foldMap :: Monoid m => (a0 -> m) -> Arg a a0 -> m #

foldr :: (a0 -> b -> b) -> b -> Arg a a0 -> b #

foldr' :: (a0 -> b -> b) -> b -> Arg a a0 -> b #

foldl :: (b -> a0 -> b) -> b -> Arg a a0 -> b #

foldl' :: (b -> a0 -> b) -> b -> Arg a a0 -> b #

foldr1 :: (a0 -> a0 -> a0) -> Arg a a0 -> a0 #

foldl1 :: (a0 -> a0 -> a0) -> Arg a a0 -> a0 #

toList :: Arg a a0 -> [a0] #

null :: Arg a a0 -> Bool #

length :: Arg a a0 -> Int #

elem :: Eq a0 => a0 -> Arg a a0 -> Bool #

maximum :: Ord a0 => Arg a a0 -> a0 #

minimum :: Ord a0 => Arg a a0 -> a0 #

sum :: Num a0 => Arg a a0 -> a0 #

product :: Num a0 => Arg a a0 -> a0 #

Traversable (Arg a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a0 -> f b) -> Arg a a0 -> f (Arg a b) #

sequenceA :: Applicative f => Arg a (f a0) -> f (Arg a a0) #

mapM :: Monad m => (a0 -> m b) -> Arg a a0 -> m (Arg a b) #

sequence :: Monad m => Arg a (m a0) -> m (Arg a a0) #

NFData a => NFData1 (Arg a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Arg a a0 -> () #

Generic1 (Arg a :: Type -> Type) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 (Arg a) :: k -> Type #

Methods

from1 :: Arg a a0 -> Rep1 (Arg a) a0 #

to1 :: Rep1 (Arg a) a0 -> Arg a a0 #

Eq a => Eq (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Arg a b -> Arg a b -> Bool #

(/=) :: Arg a b -> Arg a b -> Bool #

(Data a, Data b) => Data (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b0. Data d => c (d -> b0) -> d -> c b0) -> (forall g. g -> c g) -> Arg a b -> c (Arg a b) #

gunfold :: (forall b0 r. Data b0 => c (b0 -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Arg a b) #

toConstr :: Arg a b -> Constr #

dataTypeOf :: Arg a b -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Arg a b)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Arg a b)) #

gmapT :: (forall b0. Data b0 => b0 -> b0) -> Arg a b -> Arg a b #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Arg a b -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Arg a b -> r #

gmapQ :: (forall d. Data d => d -> u) -> Arg a b -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Arg a b -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Arg a b -> m (Arg a b) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Arg a b -> m (Arg a b) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Arg a b -> m (Arg a b) #

Ord a => Ord (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Arg a b -> Arg a b -> Ordering #

(<) :: Arg a b -> Arg a b -> Bool #

(<=) :: Arg a b -> Arg a b -> Bool #

(>) :: Arg a b -> Arg a b -> Bool #

(>=) :: Arg a b -> Arg a b -> Bool #

max :: Arg a b -> Arg a b -> Arg a b #

min :: Arg a b -> Arg a b -> Arg a b #

(Read a, Read b) => Read (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Arg a b) #

readList :: ReadS [Arg a b] #

readPrec :: ReadPrec (Arg a b) #

readListPrec :: ReadPrec [Arg a b] #

(Show a, Show b) => Show (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Arg a b -> ShowS #

show :: Arg a b -> String #

showList :: [Arg a b] -> ShowS #

Generic (Arg a b) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Arg a b) :: Type -> Type #

Methods

from :: Arg a b -> Rep (Arg a b) x #

to :: Rep (Arg a b) x -> Arg a b #

(NFData a, NFData b) => NFData (Arg a b)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Arg a b -> () #

(Hashable a, Hashable b) => Hashable (Arg a b) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Arg a b -> Int #

hash :: Arg a b -> Int #

type Rep1 (Arg a :: Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (Arg a b)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type ArgMin a b = Min (Arg a b) #

type ArgMax a b = Max (Arg a b) #

newtype First a #

Use Option (First a) to get the behavior of First from Data.Monoid.

Constructors

First 

Fields

Instances
Monad First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: First a -> (a -> First b) -> First b #

(>>) :: First a -> First b -> First b #

return :: a -> First a #

fail :: String -> First a #

Functor First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> First a -> First b #

(<$) :: a -> First b -> First a #

MonadFix First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mfix :: (a -> First a) -> First a #

Applicative First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> First a #

(<*>) :: First (a -> b) -> First a -> First b #

liftA2 :: (a -> b -> c) -> First a -> First b -> First c #

(*>) :: First a -> First b -> First b #

(<*) :: First a -> First b -> First a #

Foldable First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => First m -> m #

foldMap :: Monoid m => (a -> m) -> First a -> m #

foldr :: (a -> b -> b) -> b -> First a -> b #

foldr' :: (a -> b -> b) -> b -> First a -> b #

foldl :: (b -> a -> b) -> b -> First a -> b #

foldl' :: (b -> a -> b) -> b -> First a -> b #

foldr1 :: (a -> a -> a) -> First a -> a #

foldl1 :: (a -> a -> a) -> First a -> a #

toList :: First a -> [a] #

null :: First a -> Bool #

length :: First a -> Int #

elem :: Eq a => a -> First a -> Bool #

maximum :: Ord a => First a -> a #

minimum :: Ord a => First a -> a #

sum :: Num a => First a -> a #

product :: Num a => First a -> a #

Traversable First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> First a -> f (First b) #

sequenceA :: Applicative f => First (f a) -> f (First a) #

mapM :: Monad m => (a -> m b) -> First a -> m (First b) #

sequence :: Monad m => First (m a) -> m (First a) #

ToJSON1 First 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> First a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [First a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> First a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [First a] -> Encoding #

FromJSON1 First 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (First a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [First a] #

NFData1 First

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> First a -> () #

Bounded a => Bounded (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

minBound :: First a #

maxBound :: First a #

Enum a => Enum (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

succ :: First a -> First a #

pred :: First a -> First a #

toEnum :: Int -> First a #

fromEnum :: First a -> Int #

enumFrom :: First a -> [First a] #

enumFromThen :: First a -> First a -> [First a] #

enumFromTo :: First a -> First a -> [First a] #

enumFromThenTo :: First a -> First a -> First a -> [First a] #

Eq a => Eq (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: First a -> First a -> Bool #

(/=) :: First a -> First a -> Bool #

Data a => Data (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> First a -> c (First a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (First a) #

toConstr :: First a -> Constr #

dataTypeOf :: First a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (First a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (First a)) #

gmapT :: (forall b. Data b => b -> b) -> First a -> First a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> First a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> First a -> r #

gmapQ :: (forall d. Data d => d -> u) -> First a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> First a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> First a -> m (First a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> First a -> m (First a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> First a -> m (First a) #

Ord a => Ord (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: First a -> First a -> Ordering #

(<) :: First a -> First a -> Bool #

(<=) :: First a -> First a -> Bool #

(>) :: First a -> First a -> Bool #

(>=) :: First a -> First a -> Bool #

max :: First a -> First a -> First a #

min :: First a -> First a -> First a #

Read a => Read (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show a => Show (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> First a -> ShowS #

show :: First a -> String #

showList :: [First a] -> ShowS #

Generic (First a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (First a) :: Type -> Type #

Methods

from :: First a -> Rep (First a) x #

to :: Rep (First a) x -> First a #

Semigroup (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: First a -> First a -> First a #

sconcat :: NonEmpty (First a) -> First a #

stimes :: Integral b => b -> First a -> First a #

NFData a => NFData (First a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: First a -> () #

Hashable a => Hashable (First a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> First a -> Int #

hash :: First a -> Int #

ToJSON a => ToJSON (First a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (First a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Generic1 First 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 First :: k -> Type #

Methods

from1 :: First a -> Rep1 First a #

to1 :: Rep1 First a -> First a #

type Rep (First a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (First a) = D1 (MetaData "First" "Data.Semigroup" "base" True) (C1 (MetaCons "First" PrefixI True) (S1 (MetaSel (Just "getFirst") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 First

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 First = D1 (MetaData "First" "Data.Semigroup" "base" True) (C1 (MetaCons "First" PrefixI True) (S1 (MetaSel (Just "getFirst") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

newtype WrappedMonoid m #

Provide a Semigroup for an arbitrary Monoid.

NOTE: This is not needed anymore since Semigroup became a superclass of Monoid in base-4.11 and this newtype be deprecated at some point in the future.

Constructors

WrapMonoid 

Fields

Instances
ToJSON1 WrappedMonoid 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> WrappedMonoid a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [WrappedMonoid a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> WrappedMonoid a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [WrappedMonoid a] -> Encoding #

FromJSON1 WrappedMonoid 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (WrappedMonoid a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [WrappedMonoid a] #

NFData1 WrappedMonoid

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> WrappedMonoid a -> () #

Bounded m => Bounded (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Enum a => Enum (WrappedMonoid a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Eq m => Eq (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Data m => Data (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> WrappedMonoid m -> c (WrappedMonoid m) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (WrappedMonoid m) #

toConstr :: WrappedMonoid m -> Constr #

dataTypeOf :: WrappedMonoid m -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (WrappedMonoid m)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (WrappedMonoid m)) #

gmapT :: (forall b. Data b => b -> b) -> WrappedMonoid m -> WrappedMonoid m #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> WrappedMonoid m -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> WrappedMonoid m -> r #

gmapQ :: (forall d. Data d => d -> u) -> WrappedMonoid m -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> WrappedMonoid m -> u #

gmapM :: Monad m0 => (forall d. Data d => d -> m0 d) -> WrappedMonoid m -> m0 (WrappedMonoid m) #

gmapMp :: MonadPlus m0 => (forall d. Data d => d -> m0 d) -> WrappedMonoid m -> m0 (WrappedMonoid m) #

gmapMo :: MonadPlus m0 => (forall d. Data d => d -> m0 d) -> WrappedMonoid m -> m0 (WrappedMonoid m) #

Ord m => Ord (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Read m => Read (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show m => Show (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Generic (WrappedMonoid m) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (WrappedMonoid m) :: Type -> Type #

Monoid m => Semigroup (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Monoid m => Monoid (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

NFData m => NFData (WrappedMonoid m)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: WrappedMonoid m -> () #

Hashable a => Hashable (WrappedMonoid a) 
Instance details

Defined in Data.Hashable.Class

ToJSON a => ToJSON (WrappedMonoid a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (WrappedMonoid a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Generic1 WrappedMonoid 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 WrappedMonoid :: k -> Type #

type Rep (WrappedMonoid m)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (WrappedMonoid m) = D1 (MetaData "WrappedMonoid" "Data.Semigroup" "base" True) (C1 (MetaCons "WrapMonoid" PrefixI True) (S1 (MetaSel (Just "unwrapMonoid") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 m)))
type Rep1 WrappedMonoid

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 WrappedMonoid = D1 (MetaData "WrappedMonoid" "Data.Semigroup" "base" True) (C1 (MetaCons "WrapMonoid" PrefixI True) (S1 (MetaSel (Just "unwrapMonoid") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

newtype Option a #

Option is effectively Maybe with a better instance of Monoid, built off of an underlying Semigroup instead of an underlying Monoid.

Ideally, this type would not exist at all and we would just fix the Monoid instance of Maybe.

In GHC 8.4 and higher, the Monoid instance for Maybe has been corrected to lift a Semigroup instance instead of a Monoid instance. Consequently, this type is no longer useful. It will be marked deprecated in GHC 8.8 and removed in GHC 8.10.

Constructors

Option 

Fields

Instances
Monad Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(>>=) :: Option a -> (a -> Option b) -> Option b #

(>>) :: Option a -> Option b -> Option b #

return :: a -> Option a #

fail :: String -> Option a #

Functor Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fmap :: (a -> b) -> Option a -> Option b #

(<$) :: a -> Option b -> Option a #

MonadFix Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mfix :: (a -> Option a) -> Option a #

Applicative Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

pure :: a -> Option a #

(<*>) :: Option (a -> b) -> Option a -> Option b #

liftA2 :: (a -> b -> c) -> Option a -> Option b -> Option c #

(*>) :: Option a -> Option b -> Option b #

(<*) :: Option a -> Option b -> Option a #

Foldable Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

fold :: Monoid m => Option m -> m #

foldMap :: Monoid m => (a -> m) -> Option a -> m #

foldr :: (a -> b -> b) -> b -> Option a -> b #

foldr' :: (a -> b -> b) -> b -> Option a -> b #

foldl :: (b -> a -> b) -> b -> Option a -> b #

foldl' :: (b -> a -> b) -> b -> Option a -> b #

foldr1 :: (a -> a -> a) -> Option a -> a #

foldl1 :: (a -> a -> a) -> Option a -> a #

toList :: Option a -> [a] #

null :: Option a -> Bool #

length :: Option a -> Int #

elem :: Eq a => a -> Option a -> Bool #

maximum :: Ord a => Option a -> a #

minimum :: Ord a => Option a -> a #

sum :: Num a => Option a -> a #

product :: Num a => Option a -> a #

Traversable Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

traverse :: Applicative f => (a -> f b) -> Option a -> f (Option b) #

sequenceA :: Applicative f => Option (f a) -> f (Option a) #

mapM :: Monad m => (a -> m b) -> Option a -> m (Option b) #

sequence :: Monad m => Option (m a) -> m (Option a) #

MonadPlus Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mzero :: Option a #

mplus :: Option a -> Option a -> Option a #

Alternative Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

empty :: Option a #

(<|>) :: Option a -> Option a -> Option a #

some :: Option a -> Option [a] #

many :: Option a -> Option [a] #

ToJSON1 Option 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Option a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Option a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Option a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Option a] -> Encoding #

FromJSON1 Option 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Option a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Option a] #

NFData1 Option

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Option a -> () #

(Selector s, GToJSON enc arity (K1 i (Maybe a) :: Type -> Type), KeyValuePair enc pairs, Monoid pairs) => RecordToPairs enc pairs arity (S1 s (K1 i (Option a) :: Type -> Type)) 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

recordToPairs :: Options -> ToArgs enc arity a0 -> S1 s (K1 i (Option a)) a0 -> pairs

(Selector s, FromJSON a) => FromRecord arity (S1 s (K1 i (Option a) :: Type -> Type)) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

parseRecord :: Options -> FromArgs arity a0 -> Object -> Parser (S1 s (K1 i (Option a)) a0)

Eq a => Eq (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(==) :: Option a -> Option a -> Bool #

(/=) :: Option a -> Option a -> Bool #

Data a => Data (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Option a -> c (Option a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Option a) #

toConstr :: Option a -> Constr #

dataTypeOf :: Option a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Option a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Option a)) #

gmapT :: (forall b. Data b => b -> b) -> Option a -> Option a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Option a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Option a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Option a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Option a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Option a -> m (Option a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Option a -> m (Option a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Option a -> m (Option a) #

Ord a => Ord (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

compare :: Option a -> Option a -> Ordering #

(<) :: Option a -> Option a -> Bool #

(<=) :: Option a -> Option a -> Bool #

(>) :: Option a -> Option a -> Bool #

(>=) :: Option a -> Option a -> Bool #

max :: Option a -> Option a -> Option a #

min :: Option a -> Option a -> Option a #

Read a => Read (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Show a => Show (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

showsPrec :: Int -> Option a -> ShowS #

show :: Option a -> String #

showList :: [Option a] -> ShowS #

Generic (Option a) 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep (Option a) :: Type -> Type #

Methods

from :: Option a -> Rep (Option a) x #

to :: Rep (Option a) x -> Option a #

Semigroup a => Semigroup (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

(<>) :: Option a -> Option a -> Option a #

sconcat :: NonEmpty (Option a) -> Option a #

stimes :: Integral b => b -> Option a -> Option a #

Semigroup a => Monoid (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

mempty :: Option a #

mappend :: Option a -> Option a -> Option a #

mconcat :: [Option a] -> Option a #

NFData a => NFData (Option a)

Since: deepseq-1.4.2.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Option a -> () #

Hashable a => Hashable (Option a) 
Instance details

Defined in Data.Hashable.Class

Methods

hashWithSalt :: Int -> Option a -> Int #

hash :: Option a -> Int #

ToJSON a => ToJSON (Option a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (Option a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Generic1 Option 
Instance details

Defined in Data.Semigroup

Associated Types

type Rep1 Option :: k -> Type #

Methods

from1 :: Option a -> Rep1 Option a #

to1 :: Rep1 Option a -> Option a #

type Rep (Option a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep (Option a) = D1 (MetaData "Option" "Data.Semigroup" "base" True) (C1 (MetaCons "Option" PrefixI True) (S1 (MetaSel (Just "getOption") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Maybe a))))
type Rep1 Option

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

type Rep1 Option = D1 (MetaData "Option" "Data.Semigroup" "base" True) (C1 (MetaCons "Option" PrefixI True) (S1 (MetaSel (Just "getOption") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec1 Maybe)))

class Bifunctor (p :: Type -> Type -> Type) where #

A bifunctor is a type constructor that takes two type arguments and is a functor in both arguments. That is, unlike with Functor, a type constructor such as Either does not need to be partially applied for a Bifunctor instance, and the methods in this class permit mapping functions over the Left value or the Right value, or both at the same time.

Formally, the class Bifunctor represents a bifunctor from Hask -> Hask.

Intuitively it is a bifunctor where both the first and second arguments are covariant.

You can define a Bifunctor by either defining bimap or by defining both first and second.

If you supply bimap, you should ensure that:

bimap id idid

If you supply first and second, ensure:

first idid
second idid

If you supply both, you should also ensure:

bimap f g ≡ first f . second g

These ensure by parametricity:

bimap  (f . g) (h . i) ≡ bimap f h . bimap g i
first  (f . g) ≡ first  f . first  g
second (f . g) ≡ second f . second g

Since: base-4.8.0.0

Minimal complete definition

bimap | first, second

Methods

bimap :: (a -> b) -> (c -> d) -> p a c -> p b d #

Map over both arguments at the same time.

bimap f g ≡ first f . second g

Examples

Expand
>>> bimap toUpper (+1) ('j', 3)
('J',4)
>>> bimap toUpper (+1) (Left 'j')
Left 'J'
>>> bimap toUpper (+1) (Right 3)
Right 4

first :: (a -> b) -> p a c -> p b c #

Map covariantly over the first argument.

first f ≡ bimap f id

Examples

Expand
>>> first toUpper ('j', 3)
('J',3)
>>> first toUpper (Left 'j')
Left 'J'

second :: (b -> c) -> p a b -> p a c #

Map covariantly over the second argument.

secondbimap id

Examples

Expand
>>> second (+1) ('j', 3)
('j',4)
>>> second (+1) (Right 3)
Right 4
Instances
Bifunctor Either

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> Either a c -> Either b d #

first :: (a -> b) -> Either a c -> Either b c #

second :: (b -> c) -> Either a b -> Either a c #

Bifunctor (,)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (a, c) -> (b, d) #

first :: (a -> b) -> (a, c) -> (b, c) #

second :: (b -> c) -> (a, b) -> (a, c) #

Bifunctor Arg

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup

Methods

bimap :: (a -> b) -> (c -> d) -> Arg a c -> Arg b d #

first :: (a -> b) -> Arg a c -> Arg b c #

second :: (b -> c) -> Arg a b -> Arg a c #

Bifunctor Product 
Instance details

Defined in Data.Aeson.Config.Types

Methods

bimap :: (a -> b) -> (c -> d) -> Product a c -> Product b d #

first :: (a -> b) -> Product a c -> Product b c #

second :: (b -> c) -> Product a b -> Product a c #

Bifunctor ((,,) x1)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (x1, a, c) -> (x1, b, d) #

first :: (a -> b) -> (x1, a, c) -> (x1, b, c) #

second :: (b -> c) -> (x1, a, b) -> (x1, a, c) #

Bifunctor (Const :: Type -> Type -> Type)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> Const a c -> Const b d #

first :: (a -> b) -> Const a c -> Const b c #

second :: (b -> c) -> Const a b -> Const a c #

Bifunctor (Tagged :: Type -> Type -> Type) 
Instance details

Defined in Data.Tagged

Methods

bimap :: (a -> b) -> (c -> d) -> Tagged a c -> Tagged b d #

first :: (a -> b) -> Tagged a c -> Tagged b c #

second :: (b -> c) -> Tagged a b -> Tagged a c #

Bifunctor (K1 i :: Type -> Type -> Type)

Since: base-4.9.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> K1 i a c -> K1 i b d #

first :: (a -> b) -> K1 i a c -> K1 i b c #

second :: (b -> c) -> K1 i a b -> K1 i a c #

Bifunctor ((,,,) x1 x2)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (x1, x2, a, c) -> (x1, x2, b, d) #

first :: (a -> b) -> (x1, x2, a, c) -> (x1, x2, b, c) #

second :: (b -> c) -> (x1, x2, a, b) -> (x1, x2, a, c) #

Bifunctor ((,,,,) x1 x2 x3)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (x1, x2, x3, a, c) -> (x1, x2, x3, b, d) #

first :: (a -> b) -> (x1, x2, x3, a, c) -> (x1, x2, x3, b, c) #

second :: (b -> c) -> (x1, x2, x3, a, b) -> (x1, x2, x3, a, c) #

Functor g => Bifunctor (Joker g :: Type -> Type -> Type) 
Instance details

Defined in Data.Bifunctor.Joker

Methods

bimap :: (a -> b) -> (c -> d) -> Joker g a c -> Joker g b d #

first :: (a -> b) -> Joker g a c -> Joker g b c #

second :: (b -> c) -> Joker g a b -> Joker g a c #

Functor f => Bifunctor (Clown f :: Type -> Type -> Type) 
Instance details

Defined in Data.Bifunctor.Clown

Methods

bimap :: (a -> b) -> (c -> d) -> Clown f a c -> Clown f b d #

first :: (a -> b) -> Clown f a c -> Clown f b c #

second :: (b -> c) -> Clown f a b -> Clown f a c #

Bifunctor ((,,,,,) x1 x2 x3 x4)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (x1, x2, x3, x4, a, c) -> (x1, x2, x3, x4, b, d) #

first :: (a -> b) -> (x1, x2, x3, x4, a, c) -> (x1, x2, x3, x4, b, c) #

second :: (b -> c) -> (x1, x2, x3, x4, a, b) -> (x1, x2, x3, x4, a, c) #

(Bifunctor p, Bifunctor q) => Bifunctor (Sum p q) 
Instance details

Defined in Data.Bifunctor.Sum

Methods

bimap :: (a -> b) -> (c -> d) -> Sum p q a c -> Sum p q b d #

first :: (a -> b) -> Sum p q a c -> Sum p q b c #

second :: (b -> c) -> Sum p q a b -> Sum p q a c #

(Bifunctor f, Bifunctor g) => Bifunctor (Product f g) 
Instance details

Defined in Data.Bifunctor.Product

Methods

bimap :: (a -> b) -> (c -> d) -> Product f g a c -> Product f g b d #

first :: (a -> b) -> Product f g a c -> Product f g b c #

second :: (b -> c) -> Product f g a b -> Product f g a c #

Bifunctor ((,,,,,,) x1 x2 x3 x4 x5)

Since: base-4.8.0.0

Instance details

Defined in Data.Bifunctor

Methods

bimap :: (a -> b) -> (c -> d) -> (x1, x2, x3, x4, x5, a, c) -> (x1, x2, x3, x4, x5, b, d) #

first :: (a -> b) -> (x1, x2, x3, x4, x5, a, c) -> (x1, x2, x3, x4, x5, b, c) #

second :: (b -> c) -> (x1, x2, x3, x4, x5, a, b) -> (x1, x2, x3, x4, x5, a, c) #

(Functor f, Bifunctor p) => Bifunctor (Tannen f p) 
Instance details

Defined in Data.Bifunctor.Tannen

Methods

bimap :: (a -> b) -> (c -> d) -> Tannen f p a c -> Tannen f p b d #

first :: (a -> b) -> Tannen f p a c -> Tannen f p b c #

second :: (b -> c) -> Tannen f p a b -> Tannen f p a c #

(Bifunctor p, Functor f, Functor g) => Bifunctor (Biff p f g) 
Instance details

Defined in Data.Bifunctor.Biff

Methods

bimap :: (a -> b) -> (c -> d) -> Biff p f g a c -> Biff p f g b d #

first :: (a -> b) -> Biff p f g a c -> Biff p f g b c #

second :: (b -> c) -> Biff p f g a b -> Biff p f g a c #

errorBadArgument :: a #

Calls perror to indicate that there is a type error or similar in the given argument.

Since: base-4.7.0.0

errorMissingArgument :: a #

Calls perror to indicate that there is a missing argument in the argument list.

Since: base-4.7.0.0

errorShortFormat :: a #

Calls perror to indicate that the format string ended early.

Since: base-4.7.0.0

errorBadFormat :: Char -> a #

Calls perror to indicate an unknown format letter for a given type.

Since: base-4.7.0.0

perror :: String -> a #

Raises an error with a printf-specific prefix on the message string.

Since: base-4.7.0.0

formatRealFloat :: RealFloat a => a -> FieldFormatter #

Formatter for RealFloat values.

Since: base-4.7.0.0

formatInteger :: Integer -> FieldFormatter #

Formatter for Integer values.

Since: base-4.7.0.0

formatInt :: (Integral a, Bounded a) => a -> FieldFormatter #

Formatter for Int values.

Since: base-4.7.0.0

formatString :: IsChar a => [a] -> FieldFormatter #

Formatter for String values.

Since: base-4.7.0.0

formatChar :: Char -> FieldFormatter #

Formatter for Char values.

Since: base-4.7.0.0

vFmt :: Char -> FieldFormat -> FieldFormat #

Substitute a 'v' format character with the given default format character in the FieldFormat. A convenience for user-implemented types, which should support "%v".

Since: base-4.7.0.0

hPrintf :: HPrintfType r => Handle -> String -> r #

Similar to printf, except that output is via the specified Handle. The return type is restricted to (IO a).

printf :: PrintfType r => String -> r #

Format a variable number of arguments with the C-style formatting string.

>>> printf "%s, %d, %.4f" "hello" 123 pi
hello, 123, 3.1416

The return value is either String or (IO a) (which should be (IO '()'), but Haskell's type system makes this hard).

The format string consists of ordinary characters and conversion specifications, which specify how to format one of the arguments to printf in the output string. A format specification is introduced by the % character; this character can be self-escaped into the format string using %%. A format specification ends with a /format character/ that provides the primary information about how to format the value. The rest of the conversion specification is optional. In order, one may have flag characters, a width specifier, a precision specifier, and type-specific modifier characters.

Unlike C printf(3), the formatting of this printf is driven by the argument type; formatting is type specific. The types formatted by printf "out of the box" are:

printf is also extensible to support other types: see below.

A conversion specification begins with the character %, followed by zero or more of the following flags:

-      left adjust (default is right adjust)
+      always use a sign (+ or -) for signed conversions
space  leading space for positive numbers in signed conversions
0      pad with zeros rather than spaces
#      use an \"alternate form\": see below

When both flags are given, - overrides 0 and + overrides space. A negative width specifier in a * conversion is treated as positive but implies the left adjust flag.

The "alternate form" for unsigned radix conversions is as in C printf(3):

%o           prefix with a leading 0 if needed
%x           prefix with a leading 0x if nonzero
%X           prefix with a leading 0X if nonzero
%b           prefix with a leading 0b if nonzero
%[eEfFgG]    ensure that the number contains a decimal point

Any flags are followed optionally by a field width:

num    field width
*      as num, but taken from argument list

The field width is a minimum, not a maximum: it will be expanded as needed to avoid mutilating a value.

Any field width is followed optionally by a precision:

.num   precision
.      same as .0
.*     as num, but taken from argument list

Negative precision is taken as 0. The meaning of the precision depends on the conversion type.

Integral    minimum number of digits to show
RealFloat   number of digits after the decimal point
String      maximum number of characters

The precision for Integral types is accomplished by zero-padding. If both precision and zero-pad are given for an Integral field, the zero-pad is ignored.

Any precision is followed optionally for Integral types by a width modifier; the only use of this modifier being to set the implicit size of the operand for conversion of a negative operand to unsigned:

hh     Int8
h      Int16
l      Int32
ll     Int64
L      Int64

The specification ends with a format character:

c      character               Integral
d      decimal                 Integral
o      octal                   Integral
x      hexadecimal             Integral
X      hexadecimal             Integral
b      binary                  Integral
u      unsigned decimal        Integral
f      floating point          RealFloat
F      floating point          RealFloat
g      general format float    RealFloat
G      general format float    RealFloat
e      exponent format float   RealFloat
E      exponent format float   RealFloat
s      string                  String
v      default format          any type

The "%v" specifier is provided for all built-in types, and should be provided for user-defined type formatters as well. It picks a "best" representation for the given type. For the built-in types the "%v" specifier is converted as follows:

c      Char
u      other unsigned Integral
d      other signed Integral
g      RealFloat
s      String

Mismatch between the argument types and the format string, as well as any other syntactic or semantic errors in the format string, will cause an exception to be thrown at runtime.

Note that the formatting for RealFloat types is currently a bit different from that of C printf(3), conforming instead to showEFloat, showFFloat and showGFloat (and their alternate versions showFFloatAlt and showGFloatAlt). This is hard to fix: the fixed versions would format in a backward-incompatible way. In any case the Haskell behavior is generally more sensible than the C behavior. A brief summary of some key differences:

  • Haskell printf never uses the default "6-digit" precision used by C printf.
  • Haskell printf treats the "precision" specifier as indicating the number of digits after the decimal point.
  • Haskell printf prints the exponent of e-format numbers without a gratuitous plus sign, and with the minimum possible number of digits.
  • Haskell printf will place a zero after a decimal point when possible.

class PrintfType t #

The PrintfType class provides the variable argument magic for printf. Its implementation is intentionally not visible from this module. If you attempt to pass an argument of a type which is not an instance of this class to printf or hPrintf, then the compiler will report it as a missing instance of PrintfArg.

Minimal complete definition

spr

Instances
IsChar c => PrintfType [c]

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

spr :: String -> [UPrintf] -> [c]

a ~ () => PrintfType (IO a)

Since: base-4.7.0.0

Instance details

Defined in Text.Printf

Methods

spr :: String -> [UPrintf] -> IO a

(PrintfArg a, PrintfType r) => PrintfType (a -> r)

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

spr :: String -> [UPrintf] -> a -> r

class HPrintfType t #

The HPrintfType class provides the variable argument magic for hPrintf. Its implementation is intentionally not visible from this module.

Minimal complete definition

hspr

Instances
a ~ () => HPrintfType (IO a)

Since: base-4.7.0.0

Instance details

Defined in Text.Printf

Methods

hspr :: Handle -> String -> [UPrintf] -> IO a

(PrintfArg a, HPrintfType r) => HPrintfType (a -> r)

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

hspr :: Handle -> String -> [UPrintf] -> a -> r

class PrintfArg a where #

Typeclass of printf-formattable values. The formatArg method takes a value and a field format descriptor and either fails due to a bad descriptor or produces a ShowS as the result. The default parseFormat expects no modifiers: this is the normal case. Minimal instance: formatArg.

Minimal complete definition

formatArg

Methods

formatArg :: a -> FieldFormatter #

Since: base-4.7.0.0

parseFormat :: a -> ModifierParser #

Since: base-4.7.0.0

Instances
PrintfArg Char

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Double

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Float

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Int

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Int8

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Int16

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Int32

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Int64

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Integer

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Natural

Since: base-4.8.0.0

Instance details

Defined in Text.Printf

PrintfArg Word

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Word8

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Word16

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Word32

Since: base-2.1

Instance details

Defined in Text.Printf

PrintfArg Word64

Since: base-2.1

Instance details

Defined in Text.Printf

IsChar c => PrintfArg [c]

Since: base-2.1

Instance details

Defined in Text.Printf

class IsChar c where #

This class, with only the one instance, is used as a workaround for the fact that String, as a concrete type, is not allowable as a typeclass instance. IsChar is exported for backward-compatibility.

Methods

toChar :: c -> Char #

Since: base-4.7.0.0

fromChar :: Char -> c #

Since: base-4.7.0.0

Instances
IsChar Char

Since: base-2.1

Instance details

Defined in Text.Printf

Methods

toChar :: Char -> Char #

fromChar :: Char -> Char #

data FormatAdjustment #

Whether to left-adjust or zero-pad a field. These are mutually exclusive, with LeftAdjust taking precedence.

Since: base-4.7.0.0

Constructors

LeftAdjust 
ZeroPad 

data FormatSign #

How to handle the sign of a numeric field. These are mutually exclusive, with SignPlus taking precedence.

Since: base-4.7.0.0

Constructors

SignPlus 
SignSpace 

data FieldFormat #

Description of field formatting for formatArg. See UNIX printf(3) for a description of how field formatting works.

Since: base-4.7.0.0

Constructors

FieldFormat 

Fields

data FormatParse #

The "format parser" walks over argument-type-specific modifier characters to find the primary format character. This is the type of its result.

Since: base-4.7.0.0

Constructors

FormatParse 

Fields

type FieldFormatter = FieldFormat -> ShowS #

This is the type of a field formatter reified over its argument.

Since: base-4.7.0.0

type ModifierParser = String -> FormatParse #

Type of a function that will parse modifier characters from the format string.

Since: base-4.7.0.0

traceMarkerIO :: String -> IO () #

The traceMarkerIO function emits a marker to the eventlog, if eventlog profiling is available and enabled at runtime.

Compared to traceMarker, traceMarkerIO sequences the event with respect to other IO actions.

Since: base-4.7.0.0

traceMarker :: String -> a -> a #

The traceMarker function emits a marker to the eventlog, if eventlog profiling is available and enabled at runtime. The String is the name of the marker. The name is just used in the profiling tools to help you keep clear which marker is which.

This function is suitable for use in pure code. In an IO context use traceMarkerIO instead.

Note that when using GHC's SMP runtime, it is possible (but rare) to get duplicate events emitted if two CPUs simultaneously evaluate the same thunk that uses traceMarker.

Since: base-4.7.0.0

traceEventIO :: String -> IO () #

The traceEventIO function emits a message to the eventlog, if eventlog profiling is available and enabled at runtime.

Compared to traceEvent, traceEventIO sequences the event with respect to other IO actions.

Since: base-4.5.0.0

traceEvent :: String -> a -> a #

The traceEvent function behaves like trace with the difference that the message is emitted to the eventlog, if eventlog profiling is available and enabled at runtime.

It is suitable for use in pure code. In an IO context use traceEventIO instead.

Note that when using GHC's SMP runtime, it is possible (but rare) to get duplicate events emitted if two CPUs simultaneously evaluate the same thunk that uses traceEvent.

Since: base-4.5.0.0

traceStack :: String -> a -> a #

like trace, but additionally prints a call stack if one is available.

In the current GHC implementation, the call stack is only available if the program was compiled with -prof; otherwise traceStack behaves exactly like trace. Entries in the call stack correspond to SCC annotations, so it is a good idea to use -fprof-auto or -fprof-auto-calls to add SCC annotations automatically.

Since: base-4.5.0.0

traceShowM :: (Show a, Applicative f) => a -> f () #

Like traceM, but uses show on the argument to convert it to a String.

>>> :{
do
    x <- Just 3
    traceShowM x
    y <- pure 12
    traceShowM y
    pure (x*2 + y)
:}
3
12
Just 18

Since: base-4.7.0.0

traceM :: Applicative f => String -> f () #

Like trace but returning unit in an arbitrary Applicative context. Allows for convenient use in do-notation.

Note that the application of traceM is not an action in the Applicative context, as traceIO is in the IO type. While the fresh bindings in the following example will force the traceM expressions to be reduced every time the do-block is executed, traceM "not crashed" would only be reduced once, and the message would only be printed once. If your monad is in MonadIO, liftIO . traceIO may be a better option.

>>> :{
do
    x <- Just 3
    traceM ("x: " ++ show x)
    y <- pure 12
    traceM ("y: " ++ show y)
    pure (x*2 + y)
:}
x: 3
y: 12
Just 18

Since: base-4.7.0.0

traceShowId :: Show a => a -> a #

Like traceShow but returns the shown value instead of a third value.

>>> traceShowId (1+2+3, "hello" ++ "world")
(6,"helloworld")
(6,"helloworld")

Since: base-4.7.0.0

traceShow :: Show a => a -> b -> b #

Like trace, but uses show on the argument to convert it to a String.

This makes it convenient for printing the values of interesting variables or expressions inside a function. For example here we print the value of the variables x and y:

>>> let f x y = traceShow (x,y) (x + y) in f (1+2) 5
(3,5)
8

traceId :: String -> String #

Like trace but returns the message instead of a third value.

>>> traceId "hello"
"hello
hello"

Since: base-4.7.0.0

putTraceMsg :: String -> IO () #

 

traceIO :: String -> IO () #

The traceIO function outputs the trace message from the IO monad. This sequences the output with respect to other IO actions.

Since: base-4.5.0.0

isSubsequenceOf :: Eq a => [a] -> [a] -> Bool #

The isSubsequenceOf function takes two lists and returns True if all the elements of the first list occur, in order, in the second. The elements do not have to occur consecutively.

isSubsequenceOf x y is equivalent to elem x (subsequences y).

Examples

Expand
>>> isSubsequenceOf "GHC" "The Glorious Haskell Compiler"
True
>>> isSubsequenceOf ['a','d'..'z'] ['a'..'z']
True
>>> isSubsequenceOf [1..10] [10,9..0]
False

Since: base-4.8.0.0

foldMapDefault :: (Traversable t, Monoid m) => (a -> m) -> t a -> m #

This function may be used as a value for foldMap in a Foldable instance.

foldMapDefault f ≡ getConst . traverse (Const . f)

fmapDefault :: Traversable t => (a -> b) -> t a -> t b #

This function may be used as a value for fmap in a Functor instance, provided that traverse is defined. (Using fmapDefault with a Traversable instance defined only by sequenceA will result in infinite recursion.)

fmapDefault f ≡ runIdentity . traverse (Identity . f)

mapAccumR :: Traversable t => (a -> b -> (a, c)) -> a -> t b -> (a, t c) #

The mapAccumR function behaves like a combination of fmap and foldr; it applies a function to each element of a structure, passing an accumulating parameter from right to left, and returning a final value of this accumulator together with the new structure.

mapAccumL :: Traversable t => (a -> b -> (a, c)) -> a -> t b -> (a, t c) #

The mapAccumL function behaves like a combination of fmap and foldl; it applies a function to each element of a structure, passing an accumulating parameter from left to right, and returning a final value of this accumulator together with the new structure.

minimumBy :: Foldable t => (a -> a -> Ordering) -> t a -> a #

The least element of a non-empty structure with respect to the given comparison function.

maximumBy :: Foldable t => (a -> a -> Ordering) -> t a -> a #

The largest element of a non-empty structure with respect to the given comparison function.

asum :: (Foldable t, Alternative f) => t (f a) -> f a #

The sum of a collection of actions, generalizing concat.

asum [Just Hello, Nothing, Just World] Just Hello

sequenceA_ :: (Foldable t, Applicative f) => t (f a) -> f () #

Evaluate each action in the structure from left to right, and ignore the results. For a version that doesn't ignore the results see sequenceA.

foldlM :: (Foldable t, Monad m) => (b -> a -> m b) -> b -> t a -> m b #

Monadic fold over the elements of a structure, associating to the left, i.e. from left to right.

foldrM :: (Foldable t, Monad m) => (a -> b -> m b) -> b -> t a -> m b #

Monadic fold over the elements of a structure, associating to the right, i.e. from right to left.

stimesMonoid :: (Integral b, Monoid a) => b -> a -> a #

This is a valid definition of stimes for a Monoid.

Unlike the default definition of stimes, it is defined for 0 and so it should be preferred where possible.

stimesIdempotent :: Integral b => b -> a -> a #

This is a valid definition of stimes for an idempotent Semigroup.

When x <> x = x, this definition should be preferred, because it works in O(1) rather than O(log n).

newtype Dual a #

The dual of a Monoid, obtained by swapping the arguments of mappend.

>>> getDual (mappend (Dual "Hello") (Dual "World"))
"WorldHello"

Constructors

Dual 

Fields

Instances
Monad Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Dual a -> (a -> Dual b) -> Dual b #

(>>) :: Dual a -> Dual b -> Dual b #

return :: a -> Dual a #

fail :: String -> Dual a #

Functor Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Dual a -> Dual b #

(<$) :: a -> Dual b -> Dual a #

Applicative Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Dual a #

(<*>) :: Dual (a -> b) -> Dual a -> Dual b #

liftA2 :: (a -> b -> c) -> Dual a -> Dual b -> Dual c #

(*>) :: Dual a -> Dual b -> Dual b #

(<*) :: Dual a -> Dual b -> Dual a #

Foldable Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Dual m -> m #

foldMap :: Monoid m => (a -> m) -> Dual a -> m #

foldr :: (a -> b -> b) -> b -> Dual a -> b #

foldr' :: (a -> b -> b) -> b -> Dual a -> b #

foldl :: (b -> a -> b) -> b -> Dual a -> b #

foldl' :: (b -> a -> b) -> b -> Dual a -> b #

foldr1 :: (a -> a -> a) -> Dual a -> a #

foldl1 :: (a -> a -> a) -> Dual a -> a #

toList :: Dual a -> [a] #

null :: Dual a -> Bool #

length :: Dual a -> Int #

elem :: Eq a => a -> Dual a -> Bool #

maximum :: Ord a => Dual a -> a #

minimum :: Ord a => Dual a -> a #

sum :: Num a => Dual a -> a #

product :: Num a => Dual a -> a #

Traversable Dual

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Dual a -> f (Dual b) #

sequenceA :: Applicative f => Dual (f a) -> f (Dual a) #

mapM :: Monad m => (a -> m b) -> Dual a -> m (Dual b) #

sequence :: Monad m => Dual (m a) -> m (Dual a) #

ToJSON1 Dual 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> Dual a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [Dual a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> Dual a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [Dual a] -> Encoding #

FromJSON1 Dual 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (Dual a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [Dual a] #

NFData1 Dual

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Dual a -> () #

Bounded a => Bounded (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

minBound :: Dual a #

maxBound :: Dual a #

Eq a => Eq (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Dual a -> Dual a -> Bool #

(/=) :: Dual a -> Dual a -> Bool #

Data a => Data (Dual a)

Since: base-4.8.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Dual a -> c (Dual a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Dual a) #

toConstr :: Dual a -> Constr #

dataTypeOf :: Dual a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Dual a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Dual a)) #

gmapT :: (forall b. Data b => b -> b) -> Dual a -> Dual a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Dual a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Dual a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Dual a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Dual a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Dual a -> m (Dual a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Dual a -> m (Dual a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Dual a -> m (Dual a) #

Ord a => Ord (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Dual a -> Dual a -> Ordering #

(<) :: Dual a -> Dual a -> Bool #

(<=) :: Dual a -> Dual a -> Bool #

(>) :: Dual a -> Dual a -> Bool #

(>=) :: Dual a -> Dual a -> Bool #

max :: Dual a -> Dual a -> Dual a #

min :: Dual a -> Dual a -> Dual a #

Read a => Read (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Show a => Show (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

showsPrec :: Int -> Dual a -> ShowS #

show :: Dual a -> String #

showList :: [Dual a] -> ShowS #

Generic (Dual a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Dual a) :: Type -> Type #

Methods

from :: Dual a -> Rep (Dual a) x #

to :: Rep (Dual a) x -> Dual a #

Semigroup a => Semigroup (Dual a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Dual a -> Dual a -> Dual a #

sconcat :: NonEmpty (Dual a) -> Dual a #

stimes :: Integral b => b -> Dual a -> Dual a #

Monoid a => Monoid (Dual a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: Dual a #

mappend :: Dual a -> Dual a -> Dual a #

mconcat :: [Dual a] -> Dual a #

NFData a => NFData (Dual a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Dual a -> () #

ToJSON a => ToJSON (Dual a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (Dual a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

Generic1 Dual 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep1 Dual :: k -> Type #

Methods

from1 :: Dual a -> Rep1 Dual a #

to1 :: Rep1 Dual a -> Dual a #

type Rep (Dual a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep (Dual a) = D1 (MetaData "Dual" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Dual" PrefixI True) (S1 (MetaSel (Just "getDual") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Dual

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep1 Dual = D1 (MetaData "Dual" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Dual" PrefixI True) (S1 (MetaSel (Just "getDual") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

newtype Endo a #

The monoid of endomorphisms under composition.

>>> let computation = Endo ("Hello, " ++) <> Endo (++ "!")
>>> appEndo computation "Haskell"
"Hello, Haskell!"

Constructors

Endo 

Fields

Instances
Generic (Endo a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Endo a) :: Type -> Type #

Methods

from :: Endo a -> Rep (Endo a) x #

to :: Rep (Endo a) x -> Endo a #

Semigroup (Endo a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Endo a -> Endo a -> Endo a #

sconcat :: NonEmpty (Endo a) -> Endo a #

stimes :: Integral b => b -> Endo a -> Endo a #

Monoid (Endo a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: Endo a #

mappend :: Endo a -> Endo a -> Endo a #

mconcat :: [Endo a] -> Endo a #

type Rep (Endo a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep (Endo a) = D1 (MetaData "Endo" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Endo" PrefixI True) (S1 (MetaSel (Just "appEndo") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (a -> a))))

newtype Sum a #

Monoid under addition.

>>> getSum (Sum 1 <> Sum 2 <> mempty)
3

Constructors

Sum 

Fields

Instances
Monad Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Sum a -> (a -> Sum b) -> Sum b #

(>>) :: Sum a -> Sum b -> Sum b #

return :: a -> Sum a #

fail :: String -> Sum a #

Functor Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Sum a -> Sum b #

(<$) :: a -> Sum b -> Sum a #

Applicative Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Sum a #

(<*>) :: Sum (a -> b) -> Sum a -> Sum b #

liftA2 :: (a -> b -> c) -> Sum a -> Sum b -> Sum c #

(*>) :: Sum a -> Sum b -> Sum b #

(<*) :: Sum a -> Sum b -> Sum a #

Foldable Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Sum m -> m #

foldMap :: Monoid m => (a -> m) -> Sum a -> m #

foldr :: (a -> b -> b) -> b -> Sum a -> b #

foldr' :: (a -> b -> b) -> b -> Sum a -> b #

foldl :: (b -> a -> b) -> b -> Sum a -> b #

foldl' :: (b -> a -> b) -> b -> Sum a -> b #

foldr1 :: (a -> a -> a) -> Sum a -> a #

foldl1 :: (a -> a -> a) -> Sum a -> a #

toList :: Sum a -> [a] #

null :: Sum a -> Bool #

length :: Sum a -> Int #

elem :: Eq a => a -> Sum a -> Bool #

maximum :: Ord a => Sum a -> a #

minimum :: Ord a => Sum a -> a #

sum :: Num a => Sum a -> a #

product :: Num a => Sum a -> a #

Traversable Sum

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Sum a -> f (Sum b) #

sequenceA :: Applicative f => Sum (f a) -> f (Sum a) #

mapM :: Monad m => (a -> m b) -> Sum a -> m (Sum b) #

sequence :: Monad m => Sum (m a) -> m (Sum a) #

NFData1 Sum

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Sum a -> () #

Bounded a => Bounded (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

minBound :: Sum a #

maxBound :: Sum a #

Eq a => Eq (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Sum a -> Sum a -> Bool #

(/=) :: Sum a -> Sum a -> Bool #

Data a => Data (Sum a)

Since: base-4.8.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Sum a -> c (Sum a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Sum a) #

toConstr :: Sum a -> Constr #

dataTypeOf :: Sum a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Sum a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Sum a)) #

gmapT :: (forall b. Data b => b -> b) -> Sum a -> Sum a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Sum a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Sum a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Sum a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Sum a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Sum a -> m (Sum a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Sum a -> m (Sum a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Sum a -> m (Sum a) #

Num a => Num (Sum a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(+) :: Sum a -> Sum a -> Sum a #

(-) :: Sum a -> Sum a -> Sum a #

(*) :: Sum a -> Sum a -> Sum a #

negate :: Sum a -> Sum a #

abs :: Sum a -> Sum a #

signum :: Sum a -> Sum a #

fromInteger :: Integer -> Sum a #

Ord a => Ord (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Sum a -> Sum a -> Ordering #

(<) :: Sum a -> Sum a -> Bool #

(<=) :: Sum a -> Sum a -> Bool #

(>) :: Sum a -> Sum a -> Bool #

(>=) :: Sum a -> Sum a -> Bool #

max :: Sum a -> Sum a -> Sum a #

min :: Sum a -> Sum a -> Sum a #

Read a => Read (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Show a => Show (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

showsPrec :: Int -> Sum a -> ShowS #

show :: Sum a -> String #

showList :: [Sum a] -> ShowS #

Generic (Sum a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Sum a) :: Type -> Type #

Methods

from :: Sum a -> Rep (Sum a) x #

to :: Rep (Sum a) x -> Sum a #

Num a => Semigroup (Sum a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Sum a -> Sum a -> Sum a #

sconcat :: NonEmpty (Sum a) -> Sum a #

stimes :: Integral b => b -> Sum a -> Sum a #

Num a => Monoid (Sum a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: Sum a #

mappend :: Sum a -> Sum a -> Sum a #

mconcat :: [Sum a] -> Sum a #

NFData a => NFData (Sum a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Sum a -> () #

Generic1 Sum 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep1 Sum :: k -> Type #

Methods

from1 :: Sum a -> Rep1 Sum a #

to1 :: Rep1 Sum a -> Sum a #

type Rep (Sum a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep (Sum a) = D1 (MetaData "Sum" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Sum" PrefixI True) (S1 (MetaSel (Just "getSum") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Sum

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep1 Sum = D1 (MetaData "Sum" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Sum" PrefixI True) (S1 (MetaSel (Just "getSum") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

newtype Product a #

Monoid under multiplication.

>>> getProduct (Product 3 <> Product 4 <> mempty)
12

Constructors

Product 

Fields

Instances
Monad Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(>>=) :: Product a -> (a -> Product b) -> Product b #

(>>) :: Product a -> Product b -> Product b #

return :: a -> Product a #

fail :: String -> Product a #

Functor Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

fmap :: (a -> b) -> Product a -> Product b #

(<$) :: a -> Product b -> Product a #

Applicative Product

Since: base-4.8.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

pure :: a -> Product a #

(<*>) :: Product (a -> b) -> Product a -> Product b #

liftA2 :: (a -> b -> c) -> Product a -> Product b -> Product c #

(*>) :: Product a -> Product b -> Product b #

(<*) :: Product a -> Product b -> Product a #

Foldable Product

Since: base-4.8.0.0

Instance details

Defined in Data.Foldable

Methods

fold :: Monoid m => Product m -> m #

foldMap :: Monoid m => (a -> m) -> Product a -> m #

foldr :: (a -> b -> b) -> b -> Product a -> b #

foldr' :: (a -> b -> b) -> b -> Product a -> b #

foldl :: (b -> a -> b) -> b -> Product a -> b #

foldl' :: (b -> a -> b) -> b -> Product a -> b #

foldr1 :: (a -> a -> a) -> Product a -> a #

foldl1 :: (a -> a -> a) -> Product a -> a #

toList :: Product a -> [a] #

null :: Product a -> Bool #

length :: Product a -> Int #

elem :: Eq a => a -> Product a -> Bool #

maximum :: Ord a => Product a -> a #

minimum :: Ord a => Product a -> a #

sum :: Num a => Product a -> a #

product :: Num a => Product a -> a #

Traversable Product

Since: base-4.8.0.0

Instance details

Defined in Data.Traversable

Methods

traverse :: Applicative f => (a -> f b) -> Product a -> f (Product b) #

sequenceA :: Applicative f => Product (f a) -> f (Product a) #

mapM :: Monad m => (a -> m b) -> Product a -> m (Product b) #

sequence :: Monad m => Product (m a) -> m (Product a) #

NFData1 Product

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Product a -> () #

Bounded a => Bounded (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Eq a => Eq (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

(==) :: Product a -> Product a -> Bool #

(/=) :: Product a -> Product a -> Bool #

Data a => Data (Product a)

Since: base-4.8.0.0

Instance details

Defined in Data.Data

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Product a -> c (Product a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Product a) #

toConstr :: Product a -> Constr #

dataTypeOf :: Product a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Product a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Product a)) #

gmapT :: (forall b. Data b => b -> b) -> Product a -> Product a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Product a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Product a -> r #

gmapQ :: (forall d. Data d => d -> u) -> Product a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> Product a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Product a -> m (Product a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Product a -> m (Product a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Product a -> m (Product a) #

Num a => Num (Product a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(+) :: Product a -> Product a -> Product a #

(-) :: Product a -> Product a -> Product a #

(*) :: Product a -> Product a -> Product a #

negate :: Product a -> Product a #

abs :: Product a -> Product a #

signum :: Product a -> Product a #

fromInteger :: Integer -> Product a #

Ord a => Ord (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

compare :: Product a -> Product a -> Ordering #

(<) :: Product a -> Product a -> Bool #

(<=) :: Product a -> Product a -> Bool #

(>) :: Product a -> Product a -> Bool #

(>=) :: Product a -> Product a -> Bool #

max :: Product a -> Product a -> Product a #

min :: Product a -> Product a -> Product a #

Read a => Read (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Show a => Show (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

showsPrec :: Int -> Product a -> ShowS #

show :: Product a -> String #

showList :: [Product a] -> ShowS #

Generic (Product a) 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep (Product a) :: Type -> Type #

Methods

from :: Product a -> Rep (Product a) x #

to :: Rep (Product a) x -> Product a #

Num a => Semigroup (Product a)

Since: base-4.9.0.0

Instance details

Defined in Data.Semigroup.Internal

Methods

(<>) :: Product a -> Product a -> Product a #

sconcat :: NonEmpty (Product a) -> Product a #

stimes :: Integral b => b -> Product a -> Product a #

Num a => Monoid (Product a)

Since: base-2.1

Instance details

Defined in Data.Semigroup.Internal

Methods

mempty :: Product a #

mappend :: Product a -> Product a -> Product a #

mconcat :: [Product a] -> Product a #

NFData a => NFData (Product a)

Since: deepseq-1.4.0.0

Instance details

Defined in Control.DeepSeq

Methods

rnf :: Product a -> () #

Generic1 Product 
Instance details

Defined in Data.Semigroup.Internal

Associated Types

type Rep1 Product :: k -> Type #

Methods

from1 :: Product a -> Rep1 Product a #

to1 :: Rep1 Product a -> Product a #

type Rep (Product a)

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep (Product a) = D1 (MetaData "Product" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Product" PrefixI True) (S1 (MetaSel (Just "getProduct") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 a)))
type Rep1 Product

Since: base-4.7.0.0

Instance details

Defined in Data.Semigroup.Internal

type Rep1 Product = D1 (MetaData "Product" "Data.Semigroup.Internal" "base" True) (C1 (MetaCons "Product" PrefixI True) (S1 (MetaSel (Just "getProduct") NoSourceUnpackedness NoSourceStrictness DecidedLazy) Par1))

sortOn :: Ord b => (a -> b) -> [a] -> [a] #

Sort a list by comparing the results of a key function applied to each element. sortOn f is equivalent to sortBy (comparing f), but has the performance advantage of only evaluating f once for each element in the input list. This is called the decorate-sort-undecorate paradigm, or Schwartzian transform.

Elements are arranged from from lowest to highest, keeping duplicates in the order they appeared in the input.

>>> sortOn fst [(2, "world"), (4, "!"), (1, "Hello")]
[(1,"Hello"),(2,"world"),(4,"!")]

Since: base-4.8.0.0

permutations :: [a] -> [[a]] #

The permutations function returns the list of all permutations of the argument.

>>> permutations "abc"
["abc","bac","cba","bca","cab","acb"]

subsequences :: [a] -> [[a]] #

The subsequences function returns the list of all subsequences of the argument.

>>> subsequences "abc"
["","a","b","ab","c","ac","bc","abc"]

tails :: [a] -> [[a]] #

The tails function returns all final segments of the argument, longest first. For example,

>>> tails "abc"
["abc","bc","c",""]

Note that tails has the following strictness property: tails _|_ = _|_ : _|_

inits :: [a] -> [[a]] #

The inits function returns all initial segments of the argument, shortest first. For example,

>>> inits "abc"
["","a","ab","abc"]

Note that inits has the following strictness property: inits (xs ++ _|_) = inits xs ++ _|_

In particular, inits _|_ = [] : _|_

groupBy :: (a -> a -> Bool) -> [a] -> [[a]] #

The groupBy function is the non-overloaded version of group.

group :: Eq a => [a] -> [[a]] #

The group function takes a list and returns a list of lists such that the concatenation of the result is equal to the argument. Moreover, each sublist in the result contains only equal elements. For example,

>>> group "Mississippi"
["M","i","ss","i","ss","i","pp","i"]

It is a special case of groupBy, which allows the programmer to supply their own equality test.

deleteFirstsBy :: (a -> a -> Bool) -> [a] -> [a] -> [a] #

The deleteFirstsBy function takes a predicate and two lists and returns the first list with the first occurrence of each element of the second list removed.

unzip7 :: [(a, b, c, d, e, f, g)] -> ([a], [b], [c], [d], [e], [f], [g]) #

The unzip7 function takes a list of seven-tuples and returns seven lists, analogous to unzip.

unzip6 :: [(a, b, c, d, e, f)] -> ([a], [b], [c], [d], [e], [f]) #

The unzip6 function takes a list of six-tuples and returns six lists, analogous to unzip.

unzip5 :: [(a, b, c, d, e)] -> ([a], [b], [c], [d], [e]) #

The unzip5 function takes a list of five-tuples and returns five lists, analogous to unzip.

unzip4 :: [(a, b, c, d)] -> ([a], [b], [c], [d]) #

The unzip4 function takes a list of quadruples and returns four lists, analogous to unzip.

zipWith7 :: (a -> b -> c -> d -> e -> f -> g -> h) -> [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [g] -> [h] #

The zipWith7 function takes a function which combines seven elements, as well as seven lists and returns a list of their point-wise combination, analogous to zipWith.

zipWith6 :: (a -> b -> c -> d -> e -> f -> g) -> [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [g] #

The zipWith6 function takes a function which combines six elements, as well as six lists and returns a list of their point-wise combination, analogous to zipWith.

zipWith5 :: (a -> b -> c -> d -> e -> f) -> [a] -> [b] -> [c] -> [d] -> [e] -> [f] #

The zipWith5 function takes a function which combines five elements, as well as five lists and returns a list of their point-wise combination, analogous to zipWith.

zipWith4 :: (a -> b -> c -> d -> e) -> [a] -> [b] -> [c] -> [d] -> [e] #

The zipWith4 function takes a function which combines four elements, as well as four lists and returns a list of their point-wise combination, analogous to zipWith.

zip7 :: [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [g] -> [(a, b, c, d, e, f, g)] #

The zip7 function takes seven lists and returns a list of seven-tuples, analogous to zip.

zip6 :: [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [(a, b, c, d, e, f)] #

The zip6 function takes six lists and returns a list of six-tuples, analogous to zip.

zip5 :: [a] -> [b] -> [c] -> [d] -> [e] -> [(a, b, c, d, e)] #

The zip5 function takes five lists and returns a list of five-tuples, analogous to zip.

zip4 :: [a] -> [b] -> [c] -> [d] -> [(a, b, c, d)] #

The zip4 function takes four lists and returns a list of quadruples, analogous to zip.

genericReplicate :: Integral i => i -> a -> [a] #

The genericReplicate function is an overloaded version of replicate, which accepts any Integral value as the number of repetitions to make.

genericIndex :: Integral i => [a] -> i -> a #

The genericIndex function is an overloaded version of !!, which accepts any Integral value as the index.

genericSplitAt :: Integral i => i -> [a] -> ([a], [a]) #

The genericSplitAt function is an overloaded version of splitAt, which accepts any Integral value as the position at which to split.

genericDrop :: Integral i => i -> [a] -> [a] #

The genericDrop function is an overloaded version of drop, which accepts any Integral value as the number of elements to drop.

genericTake :: Integral i => i -> [a] -> [a] #

The genericTake function is an overloaded version of take, which accepts any Integral value as the number of elements to take.

genericLength :: Num i => [a] -> i #

The genericLength function is an overloaded version of length. In particular, instead of returning an Int, it returns any type which is an instance of Num. It is, however, less efficient than length.

insertBy :: (a -> a -> Ordering) -> a -> [a] -> [a] #

The non-overloaded version of insert.

insert :: Ord a => a -> [a] -> [a] #

The insert function takes an element and a list and inserts the element into the list at the first position where it is less than or equal to the next element. In particular, if the list is sorted before the call, the result will also be sorted. It is a special case of insertBy, which allows the programmer to supply their own comparison function.

>>> insert 4 [1,2,3,5,6,7]
[1,2,3,4,5,6,7]

partition :: (a -> Bool) -> [a] -> ([a], [a]) #

The partition function takes a predicate a list and returns the pair of lists of elements which do and do not satisfy the predicate, respectively; i.e.,

partition p xs == (filter p xs, filter (not . p) xs)
>>> partition (`elem` "aeiou") "Hello World!"
("eoo","Hll Wrld!")

transpose :: [[a]] -> [[a]] #

The transpose function transposes the rows and columns of its argument. For example,

>>> transpose [[1,2,3],[4,5,6]]
[[1,4],[2,5],[3,6]]

If some of the rows are shorter than the following rows, their elements are skipped:

>>> transpose [[10,11],[20],[],[30,31,32]]
[[10,20,30],[11,31],[32]]

intersectBy :: (a -> a -> Bool) -> [a] -> [a] -> [a] #

The intersectBy function is the non-overloaded version of intersect.

intersect :: Eq a => [a] -> [a] -> [a] #

The intersect function takes the list intersection of two lists. For example,

>>> [1,2,3,4] `intersect` [2,4,6,8]
[2,4]

If the first list contains duplicates, so will the result.

>>> [1,2,2,3,4] `intersect` [6,4,4,2]
[2,2,4]

It is a special case of intersectBy, which allows the programmer to supply their own equality test. If the element is found in both the first and the second list, the element from the first list will be used.

unionBy :: (a -> a -> Bool) -> [a] -> [a] -> [a] #

The unionBy function is the non-overloaded version of union.

union :: Eq a => [a] -> [a] -> [a] #

The union function returns the list union of the two lists. For example,

>>> "dog" `union` "cow"
"dogcw"

Duplicates, and elements of the first list, are removed from the the second list, but if the first list contains duplicates, so will the result. It is a special case of unionBy, which allows the programmer to supply their own equality test.

(\\) :: Eq a => [a] -> [a] -> [a] infix 5 #

The \\ function is list difference (non-associative). In the result of xs \\ ys, the first occurrence of each element of ys in turn (if any) has been removed from xs. Thus

(xs ++ ys) \\ xs == ys.
>>> "Hello World!" \\ "ell W"
"Hoorld!"

It is a special case of deleteFirstsBy, which allows the programmer to supply their own equality test.

deleteBy :: (a -> a -> Bool) -> a -> [a] -> [a] #

The deleteBy function behaves like delete, but takes a user-supplied equality predicate.

>>> deleteBy (<=) 4 [1..10]
[1,2,3,5,6,7,8,9,10]

delete :: Eq a => a -> [a] -> [a] #

delete x removes the first occurrence of x from its list argument. For example,

>>> delete 'a' "banana"
"bnana"

It is a special case of deleteBy, which allows the programmer to supply their own equality test.

findIndices :: (a -> Bool) -> [a] -> [Int] #

The findIndices function extends findIndex, by returning the indices of all elements satisfying the predicate, in ascending order.

>>> findIndices (`elem` "aeiou") "Hello World!"
[1,4,7]

findIndex :: (a -> Bool) -> [a] -> Maybe Int #

The findIndex function takes a predicate and a list and returns the index of the first element in the list satisfying the predicate, or Nothing if there is no such element.

>>> findIndex isSpace "Hello World!"
Just 5

elemIndices :: Eq a => a -> [a] -> [Int] #

The elemIndices function extends elemIndex, by returning the indices of all elements equal to the query element, in ascending order.

>>> elemIndices 'o' "Hello World"
[4,7]

elemIndex :: Eq a => a -> [a] -> Maybe Int #

The elemIndex function returns the index of the first element in the given list which is equal (by ==) to the query element, or Nothing if there is no such element.

>>> elemIndex 4 [0..]
Just 4

stripPrefix :: Eq a => [a] -> [a] -> Maybe [a] #

The stripPrefix function drops the given prefix from a list. It returns Nothing if the list did not start with the prefix given, or Just the list after the prefix, if it does.

>>> stripPrefix "foo" "foobar"
Just "bar"
>>> stripPrefix "foo" "foo"
Just ""
>>> stripPrefix "foo" "barfoo"
Nothing
>>> stripPrefix "foo" "barfoobaz"
Nothing

dropWhileEnd :: (a -> Bool) -> [a] -> [a] #

The dropWhileEnd function drops the largest suffix of a list in which the given predicate holds for all elements. For example:

>>> dropWhileEnd isSpace "foo\n"
"foo"
>>> dropWhileEnd isSpace "foo bar"
"foo bar"
dropWhileEnd isSpace ("foo\n" ++ undefined) == "foo" ++ undefined

Since: base-4.5.0.0

isSeparator :: Char -> Bool #

Selects Unicode space and separator characters.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Separator".

Examples

Expand

Basic usage:

>>> isSeparator 'a'
False
>>> isSeparator '6'
False
>>> isSeparator ' '
True

Warning: newlines and tab characters are not considered separators.

>>> isSeparator '\n'
False
>>> isSeparator '\t'
False

But some more exotic characters are (like HTML's &nbsp;):

>>> isSeparator '\160'
True

isNumber :: Char -> Bool #

Selects Unicode numeric characters, including digits from various scripts, Roman numerals, et cetera.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Number".

Examples

Expand

Basic usage:

>>> isNumber 'a'
False
>>> isNumber '%'
False
>>> isNumber '3'
True

ASCII '0' through '9' are all numbers:

>>> and $ map isNumber ['0'..'9']
True

Unicode Roman numerals are "numbers" as well:

>>> isNumber 'Ⅸ'
True

isMark :: Char -> Bool #

Selects Unicode mark characters, for example accents and the like, which combine with preceding characters.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Mark".

Examples

Expand

Basic usage:

>>> isMark 'a'
False
>>> isMark '0'
False

Combining marks such as accent characters usually need to follow another character before they become printable:

>>> map isMark "ò"
[False,True]

Puns are not necessarily supported:

>>> isMark '✓'
False

isLetter :: Char -> Bool #

Selects alphabetic Unicode characters (lower-case, upper-case and title-case letters, plus letters of caseless scripts and modifiers letters). This function is equivalent to isAlpha.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Letter".

Examples

Expand

Basic usage:

>>> isLetter 'a'
True
>>> isLetter 'A'
True
>>> isLetter 'λ'
True
>>> isLetter '0'
False
>>> isLetter '%'
False
>>> isLetter '♥'
False
>>> isLetter '\31'
False

Ensure that isLetter and isAlpha are equivalent.

>>> let chars = [(chr 0)..]
>>> let letters = map isLetter chars
>>> let alphas = map isAlpha chars
>>> letters == alphas
True

digitToInt :: Char -> Int #

Convert a single digit Char to the corresponding Int. This function fails unless its argument satisfies isHexDigit, but recognises both upper- and lower-case hexadecimal digits (that is, '0'..'9', 'a'..'f', 'A'..'F').

Examples

Expand

Characters '0' through '9' are converted properly to 0..9:

>>> map digitToInt ['0'..'9']
[0,1,2,3,4,5,6,7,8,9]

Both upper- and lower-case 'A' through 'F' are converted as well, to 10..15.

>>> map digitToInt ['a'..'f']
[10,11,12,13,14,15]
>>> map digitToInt ['A'..'F']
[10,11,12,13,14,15]

Anything else throws an exception:

>>> digitToInt 'G'
*** Exception: Char.digitToInt: not a digit 'G'
>>> digitToInt '♥'
*** Exception: Char.digitToInt: not a digit '\9829'

readLitChar :: ReadS Char #

Read a string representation of a character, using Haskell source-language escape conventions, and convert it to the character that it encodes. For example:

readLitChar "\\nHello"  =  [('\n', "Hello")]

lexLitChar :: ReadS String #

Read a string representation of a character, using Haskell source-language escape conventions. For example:

lexLitChar  "\\nHello"  =  [("\\n", "Hello")]

toTitle :: Char -> Char #

Convert a letter to the corresponding title-case or upper-case letter, if any. (Title case differs from upper case only for a small number of ligature letters.) Any other character is returned unchanged.

isLower :: Char -> Bool #

Selects lower-case alphabetic Unicode characters (letters).

isPrint :: Char -> Bool #

Selects printable Unicode characters (letters, numbers, marks, punctuation, symbols and spaces).

isControl :: Char -> Bool #

Selects control characters, which are the non-printing characters of the Latin-1 subset of Unicode.

isSymbol :: Char -> Bool #

Selects Unicode symbol characters, including mathematical and currency symbols.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Symbol".

Examples

Expand

Basic usage:

>>> isSymbol 'a'
False
>>> isSymbol '6'
False
>>> isSymbol '='
True

The definition of "math symbol" may be a little counter-intuitive depending on one's background:

>>> isSymbol '+'
True
>>> isSymbol '-'
False

isPunctuation :: Char -> Bool #

Selects Unicode punctuation characters, including various kinds of connectors, brackets and quotes.

This function returns True if its argument has one of the following GeneralCategorys, or False otherwise:

These classes are defined in the Unicode Character Database, part of the Unicode standard. The same document defines what is and is not a "Punctuation".

Examples

Expand

Basic usage:

>>> isPunctuation 'a'
False
>>> isPunctuation '7'
False
>>> isPunctuation '♥'
False
>>> isPunctuation '"'
True
>>> isPunctuation '?'
True
>>> isPunctuation '—'
True

isHexDigit :: Char -> Bool #

Selects ASCII hexadecimal digits, i.e. '0'..'9', 'a'..'f', 'A'..'F'.

isOctDigit :: Char -> Bool #

Selects ASCII octal digits, i.e. '0'..'7'.

isAsciiUpper :: Char -> Bool #

Selects ASCII upper-case letters, i.e. characters satisfying both isAscii and isUpper.

isAsciiLower :: Char -> Bool #

Selects ASCII lower-case letters, i.e. characters satisfying both isAscii and isLower.

isLatin1 :: Char -> Bool #

Selects the first 256 characters of the Unicode character set, corresponding to the ISO 8859-1 (Latin-1) character set.

isAscii :: Char -> Bool #

Selects the first 128 characters of the Unicode character set, corresponding to the ASCII character set.

generalCategory :: Char -> GeneralCategory #

The Unicode general category of the character. This relies on the Enum instance of GeneralCategory, which must remain in the same order as the categories are presented in the Unicode standard.

Examples

Expand

Basic usage:

>>> generalCategory 'a'
LowercaseLetter
>>> generalCategory 'A'
UppercaseLetter
>>> generalCategory '0'
DecimalNumber
>>> generalCategory '%'
OtherPunctuation
>>> generalCategory '♥'
OtherSymbol
>>> generalCategory '\31'
Control
>>> generalCategory ' '
Space

data GeneralCategory #

Unicode General Categories (column 2 of the UnicodeData table) in the order they are listed in the Unicode standard (the Unicode Character Database, in particular).

Examples

Expand

Basic usage:

>>> :t OtherLetter
OtherLetter :: GeneralCategory

Eq instance:

>>> UppercaseLetter == UppercaseLetter
True
>>> UppercaseLetter == LowercaseLetter
False

Ord instance:

>>> NonSpacingMark <= MathSymbol
True

Enum instance:

>>> enumFromTo ModifierLetter SpacingCombiningMark
[ModifierLetter,OtherLetter,NonSpacingMark,SpacingCombiningMark]

Read instance:

>>> read "DashPunctuation" :: GeneralCategory
DashPunctuation
>>> read "17" :: GeneralCategory
*** Exception: Prelude.read: no parse

Show instance:

>>> show EnclosingMark
"EnclosingMark"

Bounded instance:

>>> minBound :: GeneralCategory
UppercaseLetter
>>> maxBound :: GeneralCategory
NotAssigned

Ix instance:

>>> import Data.Ix ( index )
>>> index (OtherLetter,Control) FinalQuote
12
>>> index (OtherLetter,Control) Format
*** Exception: Error in array index

Constructors

UppercaseLetter

Lu: Letter, Uppercase

LowercaseLetter

Ll: Letter, Lowercase

TitlecaseLetter

Lt: Letter, Titlecase

ModifierLetter

Lm: Letter, Modifier

OtherLetter

Lo: Letter, Other

NonSpacingMark

Mn: Mark, Non-Spacing

SpacingCombiningMark

Mc: Mark, Spacing Combining

EnclosingMark

Me: Mark, Enclosing

DecimalNumber

Nd: Number, Decimal

LetterNumber

Nl: Number, Letter

OtherNumber

No: Number, Other

ConnectorPunctuation

Pc: Punctuation, Connector

DashPunctuation

Pd: Punctuation, Dash

OpenPunctuation

Ps: Punctuation, Open

ClosePunctuation

Pe: Punctuation, Close

InitialQuote

Pi: Punctuation, Initial quote

FinalQuote

Pf: Punctuation, Final quote

OtherPunctuation

Po: Punctuation, Other

MathSymbol

Sm: Symbol, Math

CurrencySymbol

Sc: Symbol, Currency

ModifierSymbol

Sk: Symbol, Modifier

OtherSymbol

So: Symbol, Other

Space

Zs: Separator, Space

LineSeparator

Zl: Separator, Line

ParagraphSeparator

Zp: Separator, Paragraph

Control

Cc: Other, Control

Format

Cf: Other, Format

Surrogate

Cs: Other, Surrogate

PrivateUse

Co: Other, Private Use

NotAssigned

Cn: Other, Not Assigned

Instances
Bounded GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

Enum GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

Eq GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

Ord GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

Read GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Read

Show GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

Ix GeneralCategory

Since: base-2.1

Instance details

Defined in GHC.Unicode

(&) :: a -> (a -> b) -> b infixl 1 #

& is a reverse application operator. This provides notational convenience. Its precedence is one higher than that of the forward application operator $, which allows & to be nested in $.

>>> 5 & (+1) & show
"6"

Since: base-4.8.0.0

on :: (b -> b -> c) -> (a -> b) -> a -> a -> c infixl 0 #

on b u x y runs the binary function b on the results of applying unary function u to two arguments x and y. From the opposite perspective, it transforms two inputs and combines the outputs.

((+) `on` f) x y = f x + f y

Typical usage: sortBy (compare `on` fst).

Algebraic properties:

  • (*) `on` id = (*) -- (if (*) ∉ {⊥, const ⊥})
  • ((*) `on` f) `on` g = (*) `on` (f . g)
  • flip on f . flip on g = flip on (g . f)

intToDigit :: Int -> Char #

Convert an Int in the range 0..15 to the corresponding single digit Char. This function fails on other inputs, and generates lower-case hexadecimal digits.

showLitChar :: Char -> ShowS #

Convert a character to a string using only printable characters, using Haskell source-language escape conventions. For example:

showLitChar '\n' s  =  "\\n" ++ s

iterate' :: (a -> a) -> a -> [a] #

'iterate\'' is the strict version of iterate.

It ensures that the result of each application of force to weak head normal form before proceeding.

scanl' :: (b -> a -> b) -> b -> [a] -> [b] #

A strictly accumulating version of scanl

foldl1' :: (a -> a -> a) -> [a] -> a #

A strict version of foldl1

uncons :: [a] -> Maybe (a, [a]) #

Decompose a list into its head and tail. If the list is empty, returns Nothing. If the list is non-empty, returns Just (x, xs), where x is the head of the list and xs its tail.

Since: base-4.8.0.0

fromJust :: Maybe a -> a #

The fromJust function extracts the element out of a Just and throws an error if its argument is Nothing.

Examples

Expand

Basic usage:

>>> fromJust (Just 1)
1
>>> 2 * (fromJust (Just 10))
20
>>> 2 * (fromJust Nothing)
*** Exception: Maybe.fromJust: Nothing

swap :: (a, b) -> (b, a) #

Swap the components of a pair.

stimesIdempotentMonoid :: (Integral b, Monoid a) => b -> a -> a #

This is a valid definition of stimes for an idempotent Monoid.

When mappend x x = x, this definition should be preferred, because it works in O(1) rather than O(log n)

data IntMap a #

A map of integers to values a.

Instances
Functor IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

fmap :: (a -> b) -> IntMap a -> IntMap b #

(<$) :: a -> IntMap b -> IntMap a #

Foldable IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

fold :: Monoid m => IntMap m -> m #

foldMap :: Monoid m => (a -> m) -> IntMap a -> m #

foldr :: (a -> b -> b) -> b -> IntMap a -> b #

foldr' :: (a -> b -> b) -> b -> IntMap a -> b #

foldl :: (b -> a -> b) -> b -> IntMap a -> b #

foldl' :: (b -> a -> b) -> b -> IntMap a -> b #

foldr1 :: (a -> a -> a) -> IntMap a -> a #

foldl1 :: (a -> a -> a) -> IntMap a -> a #

toList :: IntMap a -> [a] #

null :: IntMap a -> Bool #

length :: IntMap a -> Int #

elem :: Eq a => a -> IntMap a -> Bool #

maximum :: Ord a => IntMap a -> a #

minimum :: Ord a => IntMap a -> a #

sum :: Num a => IntMap a -> a #

product :: Num a => IntMap a -> a #

Traversable IntMap 
Instance details

Defined in Data.IntMap.Internal

Methods

traverse :: Applicative f => (a -> f b) -> IntMap a -> f (IntMap b) #

sequenceA :: Applicative f => IntMap (f a) -> f (IntMap a) #

mapM :: Monad m => (a -> m b) -> IntMap a -> m (IntMap b) #

sequence :: Monad m => IntMap (m a) -> m (IntMap a) #

ToJSON1 IntMap 
Instance details

Defined in Data.Aeson.Types.ToJSON

Methods

liftToJSON :: (a -> Value) -> ([a] -> Value) -> IntMap a -> Value #

liftToJSONList :: (a -> Value) -> ([a] -> Value) -> [IntMap a] -> Value #

liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> IntMap a -> Encoding #

liftToEncodingList :: (a -> Encoding) -> ([a] -> Encoding) -> [IntMap a] -> Encoding #

FromJSON1 IntMap 
Instance details

Defined in Data.Aeson.Types.FromJSON

Methods

liftParseJSON :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser (IntMap a) #

liftParseJSONList :: (Value -> Parser a) -> (Value -> Parser [a]) -> Value -> Parser [IntMap a] #

Eq1 IntMap

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

liftEq :: (a -> b -> Bool) -> IntMap a -> IntMap b -> Bool #

Ord1 IntMap

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

liftCompare :: (a -> b -> Ordering) -> IntMap a -> IntMap b -> Ordering #

Read1 IntMap

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (IntMap a) #

liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [IntMap a] #

liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (IntMap a) #

liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [IntMap a] #

Show1 IntMap

Since: containers-0.5.9

Instance details

Defined in Data.IntMap.Internal

Methods

liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> IntMap a -> ShowS #

liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [IntMap a] -> ShowS #

IsList (IntMap a)

Since: containers-0.5.6.2

Instance details

Defined in Data.IntMap.Internal

Associated Types

type Item (IntMap a) :: Type #

Methods

fromList :: [Item (IntMap a)] -> IntMap a #

fromListN :: Int -> [Item (IntMap a)] -> IntMap a #

toList :: IntMap a -> [Item (IntMap a)] #

Eq a => Eq (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

(==) :: IntMap a -> IntMap a -> Bool #

(/=) :: IntMap a -> IntMap a -> Bool #

Data a => Data (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> IntMap a -> c (IntMap a) #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (IntMap a) #

toConstr :: IntMap a -> Constr #

dataTypeOf :: IntMap a -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (IntMap a)) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (IntMap a)) #

gmapT :: (forall b. Data b => b -> b) -> IntMap a -> IntMap a #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IntMap a -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IntMap a -> r #

gmapQ :: (forall d. Data d => d -> u) -> IntMap a -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> IntMap a -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> IntMap a -> m (IntMap a) #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> IntMap a -> m (IntMap a) #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> IntMap a -> m (IntMap a) #

Ord a => Ord (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

compare :: IntMap a -> IntMap a -> Ordering #

(<) :: IntMap a -> IntMap a -> Bool #

(<=) :: IntMap a -> IntMap a -> Bool #

(>) :: IntMap a -> IntMap a -> Bool #

(>=) :: IntMap a -> IntMap a -> Bool #

max :: IntMap a -> IntMap a -> IntMap a #

min :: IntMap a -> IntMap a -> IntMap a #

Read e => Read (IntMap e) 
Instance details

Defined in Data.IntMap.Internal

Show a => Show (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

showsPrec :: Int -> IntMap a -> ShowS #

show :: IntMap a -> String #

showList :: [IntMap a] -> ShowS #

Semigroup (IntMap a)

Since: containers-0.5.7

Instance details

Defined in Data.IntMap.Internal

Methods

(<>) :: IntMap a -> IntMap a -> IntMap a #

sconcat :: NonEmpty (IntMap a) -> IntMap a #

stimes :: Integral b => b -> IntMap a -> IntMap a #

Monoid (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

mempty :: IntMap a #

mappend :: IntMap a -> IntMap a -> IntMap a #

mconcat :: [IntMap a] -> IntMap a #

NFData a => NFData (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

Methods

rnf :: IntMap a -> () #

ToJSON a => ToJSON (IntMap a) 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON a => FromJSON (IntMap a) 
Instance details

Defined in Data.Aeson.Types.FromJSON

type Item (IntMap a) 
Instance details

Defined in Data.IntMap.Internal

type Item (IntMap a) = (Key, a)

data IntSet #

A set of integers.

Instances
IsList IntSet

Since: containers-0.5.6.2

Instance details

Defined in Data.IntSet.Internal

Associated Types

type Item IntSet :: Type #

Eq IntSet 
Instance details

Defined in Data.IntSet.Internal

Methods

(==) :: IntSet -> IntSet -> Bool #

(/=) :: IntSet -> IntSet -> Bool #

Data IntSet 
Instance details

Defined in Data.IntSet.Internal

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> IntSet -> c IntSet #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c IntSet #

toConstr :: IntSet -> Constr #

dataTypeOf :: IntSet -> DataType #

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c IntSet) #

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c IntSet) #

gmapT :: (forall b. Data b => b -> b) -> IntSet -> IntSet #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> IntSet -> r #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> IntSet -> r #

gmapQ :: (forall d. Data d => d -> u) -> IntSet -> [u] #

gmapQi :: Int -> (forall d. Data d => d -> u) -> IntSet -> u #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> IntSet -> m IntSet #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> IntSet -> m IntSet #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> IntSet -> m IntSet #

Ord IntSet 
Instance details

Defined in Data.IntSet.Internal

Read IntSet 
Instance details

Defined in Data.IntSet.Internal

Show IntSet 
Instance details

Defined in Data.IntSet.Internal

Semigroup IntSet

Since: containers-0.5.7

Instance details

Defined in Data.IntSet.Internal

Monoid IntSet 
Instance details

Defined in Data.IntSet.Internal

NFData IntSet 
Instance details

Defined in Data.IntSet.Internal

Methods

rnf :: IntSet -> () #

ToJSON IntSet 
Instance details

Defined in Data.Aeson.Types.ToJSON

FromJSON IntSet 
Instance details

Defined in Data.Aeson.Types.FromJSON

type Item IntSet 
Instance details

Defined in Data.IntSet.Internal

type Item IntSet = Key

rnf2 :: (NFData2 p, NFData a, NFData b) => p a b -> () #

Lift the standard rnf function through the type constructor.

Since: deepseq-1.4.3.0

rnf1 :: (NFData1 f, NFData a) => f a -> () #

Lift the standard rnf function through the type constructor.

Since: deepseq-1.4.3.0

rwhnf :: a -> () #

Reduce to weak head normal form

Equivalent to \x -> seq x ().

Useful for defining NFData for types for which NF=WHNF holds.

data T = C1 | C2 | C3
instance NFData T where rnf = rwhnf

Since: deepseq-1.4.3.0

(<$!!>) :: (Monad m, NFData b) => (a -> b) -> m a -> m b infixl 4 #

Deeply strict version of <$>.

Since: deepseq-1.4.3.0

force :: NFData a => a -> a #

a variant of deepseq that is useful in some circumstances:

force x = x `deepseq` x

force x fully evaluates x, and then returns it. Note that force x only performs evaluation when the value of force x itself is demanded, so essentially it turns shallow evaluation into deep evaluation.

force can be conveniently used in combination with ViewPatterns:

{-# LANGUAGE BangPatterns, ViewPatterns #-}
import Control.DeepSeq

someFun :: ComplexData -> SomeResult
someFun (force -> !arg) = {- 'arg' will be fully evaluated -}

Another useful application is to combine force with evaluate in order to force deep evaluation relative to other IO operations:

import Control.Exception (evaluate)
import Control.DeepSeq

main = do
  result <- evaluate $ force $ pureComputation
  {- 'result' will be fully evaluated at this point -}
  return ()

Finally, here's an exception safe variant of the readFile' example:

readFile' :: FilePath -> IO String
readFile' fn = bracket (openFile fn ReadMode) hClose $ \h ->
                       evaluate . force =<< hGetContents h

Since: deepseq-1.2.0.0

($!!) :: NFData a => (a -> b) -> a -> b infixr 0 #

the deep analogue of $!. In the expression f $!! x, x is fully evaluated before the function f is applied to it.

Since: deepseq-1.2.0.0

deepseq :: NFData a => a -> b -> b #

deepseq: fully evaluates the first argument, before returning the second.

The name deepseq is used to illustrate the relationship to seq: where seq is shallow in the sense that it only evaluates the top level of its argument, deepseq traverses the entire data structure evaluating it completely.

deepseq can be useful for forcing pending exceptions, eradicating space leaks, or forcing lazy I/O to happen. It is also useful in conjunction with parallel Strategies (see the parallel package).

There is no guarantee about the ordering of evaluation. The implementation may evaluate the components of the structure in any order or in parallel. To impose an actual order on evaluation, use pseq from Control.Parallel in the parallel package.

Since: deepseq-1.1.0.0

class NFData1 (f :: Type -> Type) where #

A class of functors that can be fully evaluated.

Since: deepseq-1.4.3.0

Minimal complete definition

Nothing

Methods

liftRnf :: (a -> ()) -> f a -> () #

liftRnf should reduce its argument to normal form (that is, fully evaluate all sub-components), given an argument to reduce a arguments, and then return '()'.

See rnf for the generic deriving.

Instances
NFData1 []

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> [a] -> () #

NFData1 Maybe

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Maybe a -> () #

NFData1 Ratio

Available on base >=4.9

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Ratio a -> () #

NFData1 Ptr

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Ptr a -> () #

NFData1 FunPtr

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> FunPtr a -> () #

NFData1 Last

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Last a -> () #

NFData1 Identity

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Identity a -> () #

NFData1 ZipList

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> ZipList a -> () #

NFData1 Fixed

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Fixed a -> () #

NFData1 Min

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Min a -> () #

NFData1 Max

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Max a -> () #

NFData1 First

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> First a -> () #

NFData1 WrappedMonoid

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> WrappedMonoid a -> () #

NFData1 Option

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Option a -> () #

NFData1 StableName

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> StableName a -> () #

NFData1 IORef

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> IORef a -> () #

NFData1 First

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> First a -> () #

NFData1 Last

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Last a -> () #

NFData1 Dual

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Dual a -> () #

NFData1 Sum

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Sum a -> () #

NFData1 Product

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Product a -> () #

NFData1 Down

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Down a -> () #

NFData1 MVar

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> MVar a -> () #

NFData1 NonEmpty

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> NonEmpty a -> () #

NFData a => NFData1 (Either a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Either a a0 -> () #

NFData a => NFData1 ((,) a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> (a, a0) -> () #

NFData a => NFData1 (Array a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Array a a0 -> () #

NFData a => NFData1 (Arg a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Arg a a0 -> () #

NFData1 (Proxy :: Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Proxy a -> () #

NFData1 (STRef s)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> STRef s a -> () #

(NFData a1, NFData a2) => NFData1 ((,,) a1 a2)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a) -> () #

NFData a => NFData1 (Const a :: Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> Const a a0 -> () #

NFData1 ((:~:) a)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> (a :~: a0) -> () #

(NFData a1, NFData a2, NFData a3) => NFData1 ((,,,) a1 a2 a3)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a) -> () #

(NFData1 f, NFData1 g) => NFData1 (Product f g)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Product f g a -> () #

(NFData1 f, NFData1 g) => NFData1 (Sum f g)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Sum f g a -> () #

NFData1 ((:~~:) a :: Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a0 -> ()) -> (a :~~: a0) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4) => NFData1 ((,,,,) a1 a2 a3 a4)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a4, a) -> () #

(NFData1 f, NFData1 g) => NFData1 (Compose f g)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> Compose f g a -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5) => NFData1 ((,,,,,) a1 a2 a3 a4 a5)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a4, a5, a) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6) => NFData1 ((,,,,,,) a1 a2 a3 a4 a5 a6)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a4, a5, a6, a) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7) => NFData1 ((,,,,,,,) a1 a2 a3 a4 a5 a6 a7)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a4, a5, a6, a7, a) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7, NFData a8) => NFData1 ((,,,,,,,,) a1 a2 a3 a4 a5 a6 a7 a8)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf :: (a -> ()) -> (a1, a2, a3, a4, a5, a6, a7, a8, a) -> () #

class NFData2 (p :: Type -> Type -> Type) where #

A class of bifunctors that can be fully evaluated.

Since: deepseq-1.4.3.0

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> p a b -> () #

liftRnf2 should reduce its argument to normal form (that is, fully evaluate all sub-components), given functions to reduce a and b arguments respectively, and then return '()'.

Note: Unlike for the unary liftRnf, there is currently no support for generically deriving liftRnf2.

Instances
NFData2 Either

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Either a b -> () #

NFData2 (,)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a, b) -> () #

NFData2 Array

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Array a b -> () #

NFData2 Arg

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Arg a b -> () #

NFData2 STRef

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> STRef a b -> () #

NFData a1 => NFData2 ((,,) a1)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a, b) -> () #

NFData2 (Const :: Type -> Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> Const a b -> () #

NFData2 ((:~:) :: Type -> Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a :~: b) -> () #

(NFData a1, NFData a2) => NFData2 ((,,,) a1 a2)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a, b) -> () #

NFData2 ((:~~:) :: Type -> Type -> Type)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a :~~: b) -> () #

(NFData a1, NFData a2, NFData a3) => NFData2 ((,,,,) a1 a2 a3)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a3, a, b) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4) => NFData2 ((,,,,,) a1 a2 a3 a4)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a3, a4, a, b) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5) => NFData2 ((,,,,,,) a1 a2 a3 a4 a5)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a3, a4, a5, a, b) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6) => NFData2 ((,,,,,,,) a1 a2 a3 a4 a5 a6)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a3, a4, a5, a6, a, b) -> () #

(NFData a1, NFData a2, NFData a3, NFData a4, NFData a5, NFData a6, NFData a7) => NFData2 ((,,,,,,,,) a1 a2 a3 a4 a5 a6 a7)

Since: deepseq-1.4.3.0

Instance details

Defined in Control.DeepSeq

Methods

liftRnf2 :: (a -> ()) -> (b -> ()) -> (a1, a2, a3, a4, a5, a6, a7, a, b) -> () #

class Profunctor (p :: Type -> Type -> Type) where #

Formally, the class Profunctor represents a profunctor from Hask -> Hask.

Intuitively it is a bifunctor where the first argument is contravariant and the second argument is covariant.

You can define a Profunctor by either defining dimap or by defining both lmap and rmap.

If you supply dimap, you should ensure that:

dimap id idid

If you supply lmap and rmap, ensure:

lmap idid
rmap idid

If you supply both, you should also ensure:

dimap f g ≡ lmap f . rmap g

These ensure by parametricity:

dimap (f . g) (h . i) ≡ dimap g h . dimap f i
lmap (f . g) ≡ lmap g . lmap f
rmap (f . g) ≡ rmap f . rmap g

Minimal complete definition

dimap | lmap, rmap

Methods

dimap :: (a -> b) -> (c -> d) -> p b c -> p a d #

Map over both arguments at the same time.

dimap f g ≡ lmap f . rmap g

lmap :: (a -> b) -> p b c -> p a c #

Map the first argument contravariantly.

lmap f ≡ dimap f id

rmap :: (b -> c) -> p a b -> p a c #

Map the second argument covariantly.

rmapdimap id
Instances
Monad m => Profunctor (Kleisli m) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Kleisli m b c -> Kleisli m a d #

lmap :: (a -> b) -> Kleisli m b c -> Kleisli m a c #

rmap :: (b -> c) -> Kleisli m a b -> Kleisli m a c #

(#.) :: Coercible c b => q b c -> Kleisli m a b -> Kleisli m a c #

(.#) :: Coercible b a => Kleisli m b c -> q a b -> Kleisli m a c #

Profunctor (Tagged :: Type -> Type -> Type) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Tagged b c -> Tagged a d #

lmap :: (a -> b) -> Tagged b c -> Tagged a c #

rmap :: (b -> c) -> Tagged a b -> Tagged a c #

(#.) :: Coercible c b => q b c -> Tagged a b -> Tagged a c #

(.#) :: Coercible b a => Tagged b c -> q a b -> Tagged a c #

Profunctor ((->) :: Type -> Type -> Type) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> (b -> c) -> a -> d #

lmap :: (a -> b) -> (b -> c) -> a -> c #

rmap :: (b -> c) -> (a -> b) -> a -> c #

(#.) :: Coercible c b => q b c -> (a -> b) -> a -> c #

(.#) :: Coercible b a => (b -> c) -> q a b -> a -> c #

Functor w => Profunctor (Cokleisli w) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Cokleisli w b c -> Cokleisli w a d #

lmap :: (a -> b) -> Cokleisli w b c -> Cokleisli w a c #

rmap :: (b -> c) -> Cokleisli w a b -> Cokleisli w a c #

(#.) :: Coercible c b => q b c -> Cokleisli w a b -> Cokleisli w a c #

(.#) :: Coercible b a => Cokleisli w b c -> q a b -> Cokleisli w a c #

Functor f => Profunctor (Joker f :: Type -> Type -> Type) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Joker f b c -> Joker f a d #

lmap :: (a -> b) -> Joker f b c -> Joker f a c #

rmap :: (b -> c) -> Joker f a b -> Joker f a c #

(#.) :: Coercible c b => q b c -> Joker f a b -> Joker f a c #

(.#) :: Coercible b a => Joker f b c -> q a b -> Joker f a c #

Contravariant f => Profunctor (Clown f :: Type -> Type -> Type) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Clown f b c -> Clown f a d #

lmap :: (a -> b) -> Clown f b c -> Clown f a c #

rmap :: (b -> c) -> Clown f a b -> Clown f a c #

(#.) :: Coercible c b => q b c -> Clown f a b -> Clown f a c #

(.#) :: Coercible b a => Clown f b c -> q a b -> Clown f a c #

(Profunctor p, Profunctor q) => Profunctor (Sum p q) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Sum p q b c -> Sum p q a d #

lmap :: (a -> b) -> Sum p q b c -> Sum p q a c #

rmap :: (b -> c) -> Sum p q a b -> Sum p q a c #

(#.) :: Coercible c b => q0 b c -> Sum p q a b -> Sum p q a c #

(.#) :: Coercible b a => Sum p q b c -> q0 a b -> Sum p q a c #

(Profunctor p, Profunctor q) => Profunctor (Product p q) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Product p q b c -> Product p q a d #

lmap :: (a -> b) -> Product p q b c -> Product p q a c #

rmap :: (b -> c) -> Product p q a b -> Product p q a c #

(#.) :: Coercible c b => q0 b c -> Product p q a b -> Product p q a c #

(.#) :: Coercible b a => Product p q b c -> q0 a b -> Product p q a c #

(Functor f, Profunctor p) => Profunctor (Tannen f p) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Tannen f p b c -> Tannen f p a d #

lmap :: (a -> b) -> Tannen f p b c -> Tannen f p a c #

rmap :: (b -> c) -> Tannen f p a b -> Tannen f p a c #

(#.) :: Coercible c b => q b c -> Tannen f p a b -> Tannen f p a c #

(.#) :: Coercible b a => Tannen f p b c -> q a b -> Tannen f p a c #

(Profunctor p, Functor f, Functor g) => Profunctor (Biff p f g) 
Instance details

Defined in Data.Profunctor.Unsafe

Methods

dimap :: (a -> b) -> (c -> d) -> Biff p f g b c -> Biff p f g a d #

lmap :: (a -> b) -> Biff p f g b c -> Biff p f g a c #

rmap :: (b -> c) -> Biff p f g a b -> Biff p f g a c #

(#.) :: Coercible c b => q b c -> Biff p f g a b -> Biff p f g a c #

(.#) :: Coercible b a => Biff p f g b c -> q a b -> Biff p f g a c #

data PointedList a #

The implementation of the pointed list structure which tracks the current position in the list structure.

Instances
Functor PointedList 
Instance details

Defined in Data.List.PointedList

Methods

fmap :: (a -> b) -> PointedList a -> PointedList b #

(<$) :: a -> PointedList b -> PointedList a #

Foldable PointedList 
Instance details

Defined in Data.List.PointedList

Methods

fold :: Monoid m => PointedList m -> m #

foldMap :: Monoid m => (a -> m) -> PointedList a -> m #

foldr :: (a -> b -> b) -> b -> PointedList a -> b #

foldr' :: (a -> b -> b) -> b -> PointedList a -> b #

foldl :: (b -> a -> b) -> b -> PointedList a -> b #

foldl' :: (b -> a -> b) -> b -> PointedList a -> b #

foldr1 :: (a -> a -> a) -> PointedList a -> a #

foldl1 :: (a -> a -> a) -> PointedList a -> a #

toList :: PointedList a -> [a] #

null :: PointedList a -> Bool #

length :: PointedList a -> Int #

elem :: Eq a => a -> PointedList a -> Bool #

maximum :: Ord a => PointedList a -> a #

minimum :: Ord a => PointedList a -> a #

sum :: Num a => PointedList a -> a #

product :: Num a => PointedList a -> a #

Traversable PointedList 
Instance details

Defined in Data.List.PointedList

Methods

traverse :: Applicative f => (a -> f b) -> PointedList a -> f (PointedList b) #

sequenceA :: Applicative f => PointedList (f a) -> f (PointedList a) #

mapM :: Monad m => (a -> m b) -> PointedList a -> m (PointedList b) #

sequence :: Monad m => PointedList (m a) -> m (PointedList a) #

Eq a => Eq (PointedList a) 
Instance details

Defined in Data.List.PointedList

Show a => Show (PointedList a) 
Instance details

Defined in Data.List.PointedList

Binary a => Binary (PointedList a) 
Instance details

Defined in Data.List.PointedList

Methods

put :: PointedList a -> Put #

get :: Get (PointedList a) #

putList :: [PointedList a] -> Put #

data ChallengeSpec Source #

A specification for a specific challenge. Should consist of a day and a lowercase character.

Constructors

CS 

Fields

type ChallengeMap = Map (Finite 25) (Map Char Challenge) Source #

A map of days to parts to challenges.

data ChallengeError Source #

Errors that might happen when running a Challenge on some input.

Constructors

CEParse 
CESolve 
Instances
Eq ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Ord ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Show ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Generic ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Associated Types

type Rep ChallengeError :: Type -> Type #

NFData ChallengeError Source # 
Instance details

Defined in AOC2018.Types

Methods

rnf :: ChallengeError -> () #

type Rep ChallengeError Source # 
Instance details

Defined in AOC2018.Types

type Rep ChallengeError = D1 (MetaData "ChallengeError" "AOC2018.Types" "aoc2018-0.1.0.0-JneIPlhz1ZYA4avhMpZaIs" False) (C1 (MetaCons "CEParse" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "CESolve" PrefixI False) (U1 :: Type -> Type))

data Challenge where Source #

Abstracting over the type of a challenge solver to help with cleaner solutions.

Consists of a parser, a shower, and a solver. The solver solves a general a -> Maybe b function, and the parser and shower are used to handle the boilerplate of parsing and printing the solution.

Constructors

MkC 

Fields

withSolver' :: (String -> String) -> Challenge Source #

Construct a Challenge from just a normal String -> String solver. Does no parsing or special printing treatment.

withSolver :: (String -> Maybe String) -> Challenge Source #

Construct a Challenge from a String -> Maybe String solver, which might fail. Does no parsing or special printing treatment.

(!!!) :: [a] -> Int -> a Source #

Strict (!!)

strip :: String -> String Source #

Strip trailing and leading whitespace.

iterateMaybe :: (a -> Maybe a) -> a -> [a] Source #

Iterate until a Nothing is produced

dup :: a -> (a, a) Source #

scanlT :: Traversable t => (b -> a -> b) -> b -> t a -> t b Source #

scanl generalized to all Traversable.

scanrT :: Traversable t => (a -> b -> b) -> b -> t a -> t b Source #

scanr generalized to all Traversable.

maybeToEither :: e -> Maybe a -> Either e a Source #

firstRepeated :: Ord a => [a] -> Maybe a Source #

Lazily find the first repeated item.